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1.
OBJECTIVE: To explore the effect of tobacco use (smoking and smokeless tobacco) and cessation on body weight. DESIGN: Cross-sectional and prospective follow-up study. SETTING: Northern Sweden. SUBJECTS: A total of 2993 men aged 25-64 years who participated in the northern Sweden MONICA study in 1986, 1990 or 1994, 1650 of whom were followed up in 1999. MAIN OUTCOME MEASURES: The prevalence of overweight [body mass index (BMI) >/= 27] amongst tobacco users was compared with nonusers at entry into the study. The average annual percentage weight gain amongst men was also determined according to tobacco use both at entry and at follow-up, and the development of overweight amongst tobacco-use groups was reported using standardized incidence ratios. RESULTS: Smokers who quit tobacco during the follow-up period gained significantly more weight than smokers who switched to snus (annual gain 0.96% vs. 0.51%, P < 0.05). At entry, ex-smokers had higher prevalence of overweight than nonusers of tobacco [prevalence ratio (PR) = 1.24, 95% confidence interval (CI) = 1.10-1.40]. Snus users had slightly higher prevalence of overweight at entry (PR = 1.20, CI = 1.01-1.42). Snus users who quit gained more weight than nonusers (0.70% vs. 0.44%, P < 0.05) or those who continued to use snus (0.42%). CONCLUSIONS: Cessation of tobacco, either cigarettes or snus, leads to significantly increased weight gain. However, snus use may play a role in lowering the weight gain following smoking cessation.  相似文献   

2.
AimTo determine the proportion of people with diabetes reporting a history of foot ulcer and investigate associated factors and healing time in the Nord-Trøndelag Health Survey (HUNT3), Norway.MethodsIn 2006–2008, all inhabitants in Nord-Trøndelag County aged ≥ 20 years were invited to take part in this population-based study; 54% (n = 50,807) attended. In participants reporting to have diabetes we examined the relationships between foot ulcers requiring more than 3 weeks to heal (DFU) and sociodemographic, lifestyle and clinical variables using logistic regression analysis.ResultsAmong participants with diabetes, 7.4% (95% confidence interval (CI) 6.2%–8.6%) reported a DFU. The median healing time was 6.0 weeks. In the final model, factors associated with a DFU were age ≥ 75 years (odds ratio (OR) 2.3, 95% CI 1.4–3.7), male sex (OR 2.0, 95% CI 1.3–3.1), waist circumference ≥ 102 cm (men) or 88 cm (women) (OR 1.95, 95% CI 1.2–3.2), insulin use (OR 2.1, 95% CI 1.3–3.4) and any macrovascular complication (OR 1.8, 95% CI 1.1–2.8).ConclusionsThe proportion of people with diabetes reporting a DFU was 7.4%, associated factors were age ≥ 75 years, male sex, waist circumference ≥ 102 cm (men) or 88 cm (women), insulin use and any macrovascular complication. The median healing time was 6 weeks.  相似文献   

3.
BACKGROUND AND AIMS: Prevalence of gastroesophageal reflux symptoms (GERS) increases during pregnancy, but there are no longitudinal studies on western populations examining their incidence in each trimester. Our aim was to describe the natural history of GERS in pregnancy and to ascertain whether pregnancy might be associated with a higher risk of developing GERS 1 yr postpartum. METHODS: Pregnant women (<12 wk gestation) and age-matched controls were included. A telephone survey was conducted, covering pregnant women at 12, 24, and 36 wk of gestation and at 1 yr postpartum, using a validated questionnaire. Controls were interviewed at baseline and 21 months later. RESULTS: Data on 263 pregnant women were analyzed. Incidence of GERS was 25.8% (95% confidence interval [CI] 20.1-31.1%) in the first trimester, 24.3% (95% CI 18.1-30.6%) in the second, and 25.5% (95% CI 18.2-32.8%) in the third. Factors associated with developing GERS in the first trimester were South American origin (odds ratio [OR] 2.75, 95% CI 1.30-5.84) and prepregnancy occasional GERS (OR 3.00, 95% CI 1.35-6.66). Risk factors of GERS in the third trimester were cumulative weight gain during pregnancy (OR 1.18, 95% CI 1.04-1.32) and prepregnancy occasional GERS (OR 3.79, 95% CI 1.08-13.24). Incidence of frequent GERS at 1 yr postpartum was higher in pregnant versus control women (4.7%vs 1.3%, P < 0.05). CONCLUSIONS: Incidence of GERS is similar across the three trimesters of pregnancy. Accumulated weight gain during pregnancy is associated with a higher risk of GERS in the third trimester. Pregnancy might constitute a risk factor for developing GERS 1 yr postpartum.  相似文献   

4.
BackgroundProfessions distinguished by repeated vocal stress carry a high risk of developing gastroesophageal reflux symptoms (GERS) which may affect vocal performance.AimsTo investigate the prevalence of self-reported GERS in professional opera soloists.MethodsA validated questionnaire regarding self-reported GERS (heartburn, regurgitation, chest pain, dysphagia, hoarseness, and cough) and lifestyle habits was administered to 116 professional opera soloists (mean age 34.1 ± 7.3 years, F:M ratio 1:1.1). Age and sex-matched opera choristers and control subjects were used as control. Prevalence rate ratios (PRRs) adjusted for confounding factors were evaluated.ResultsAmong GERS, belching (33.6%), heartburn (19.8%), and dysphagia (15.5%) were the most commonly reported by soloists. In particular, a higher risk of heartburn (PRR 2.61, 95% CI 1.45–4.69) and dysphagia (PRR 2.58, 95% CI 1.31–5.10) was reported in soloists as compared to choristers. The prevalence of obesity and late dinner was higher in both choristers and soloists in comparison to the population sample (p < 0.001). GERS was more common among soloists who received pharmacologic treatment and their prevalence was unrelated to the years of singing activity.ConclusionsProfessional opera soloists, regardless of the length of their career, are predisposed to developing GERS. Physicians should encourage patients to correct preventable risk factors. A prolonged pharmacological treatment might be needed.  相似文献   

5.
BACKGROUND AND OBJECTIVES: Cross-sectional data from northern Sweden suggest that the increased use of Swedish moist snuff (snus) may have contributed to a decline in the prevalence of smoking, especially amongst men. This study describes the evolving patterns of tobacco use in this population over the period 1986-1999. DESIGN: This is a prospective follow-up study of 1651 men and 1756 women, aged 25-64 years, who were enrolled in the northern Sweden MONICA project (entry in 1986, 1990, 1994) and who were followed-up in 1999. Information on tobacco use at entry and at follow-up was used to describe the stability of tobacco use over a period of 5-13 years ending in 1999. RESULTS: Snus was the most stable form of tobacco use amongst men (75%); only 2% of users switched to cigarettes and 20% quit tobacco altogether. Smoking was less stable (54%); 27% of smokers were tobacco-free and 12% used snus at follow-up. Combined use (smoking and snus) was the least stable (39%), as 43% switched to snus and 6% switched to cigarettes. Former users of both products were much less stable than former users of either cigarettes or snus. The stability of smoking amongst women was 69%, which was higher than that amongst men (P < 0.05). CONCLUSIONS: The use of snus played a major role in the decline of smoking rates amongst men in northern Sweden. The evolution from smoking to snus use occurred in the absence of a specific public health policy encouraging such a transition and probably resulted from historical and societal influences.  相似文献   

6.
BackgroundVitamin K antagonists (VKA) are often used as oral anticoagulants in order to prevent thromboembolic diseases. In bone, vitamin K reduces bone resorption and functions as a cofactor in the posttranslational carboxylation of several bone proteins. Discrepant results have been reported on whether VKA affects bone mineral density and fracture risk.AimIn a nationwide population-based pharmaco-epidemiological case-control study we assessed fracture risk in users of VKA.MethodsWe compared 124,655 cases that sustained a fracture during year 2000 with 373,962 age- and gender-matched controls. We used computerized registers to assess individual drug use and related these data to individual fracture data and information on confounders.ResultsVKA was used in 2.2% of the cases and in 1.6% of the controls (crude OR 1.34; 95% CI, 1.28–1.41). After confounder adjustment, current use of VKA was associated with an increased risk of any fracture (OR 1.10; 95%CI, 1.03–1.18). Fracture risk was not increased in former users. Dose–effect analysis showed that only those who had used a relatively low accumulated dose of VKA (less than 100 defined daily dosages) had an increased risk of any fracture (adj. OR 1.49; 95%CI, 1.31–1.69), as well as an increased risk of fractures at the hip (adj. OR 1.43; 95%CI, 1.09–1.87) and forearm (adj. OR 1.42; 95%CI, 1.02–1.97).ConclusionCurrent use of small, accumulated amounts of VKA is associated with an increased fracture risk. This may be due to circumstances related to the disease necessitating therapy as well as due to a pharmacological effect.  相似文献   

7.
Objective. Gastroesophageal reflux disease has been reported to be a common burden on health-care resources in the Western world, but its manifestations in the general population are as yet unclear. The aim of this study was to estimate the prevalence of, and to identify the risk factors for gastroesophageal reflux symptoms (GERS) and erosive esophagitis (EE) in the adult population of two Swedish municipalities. Material and methods. A random sample (n=3000) of the adult population (20–81 years of age) of two Swedish municipalities (n=21,610) was surveyed using a validated postal questionnaire assessing gastrointestinal symptoms. The response rate was 74%. A subsample (n=1000) of the responders was subsequently invited, in random order, for esophago-gastro-duodenoscopy with evaluation of GERS, risk factors and tests for Helicobacter pylori. Results. GERS were reported by 40.0% and EE was found in 15.5% of the population that had undergone endoscopy. Of those with GERS, 24.5% had EE while 36.8% of those with EE reported no GERS. Hiatus hernia and obesity remained significant risk factors for GERS and/or EE, with or without symptoms in a main effect model (OR up to 14 at EE). Those with active H. pylori infection had a higher risk of GERS without EE than those without H. pylori infection (OR=1.71 (1.23–2.38)). Conclusions. GERS and EE (of which one-third is asymptomatic) are highly prevalent in the Swedish adult population. H. pylori infection seems to play a role in the manifestations of gastroesophageal reflux.  相似文献   

8.
Background

Variability in colon polyp detection impacts patient outcomes. However, the relative influence of physician, patient, and procedure-specific factors on polyp detection is unclear. Therefore, determining how these factors contribute to adenoma and sessile serrated polyp (SSP) detection is important to contextualize measures of colonoscopy quality such as adenoma detection rate and patient outcomes.

Aims

To determine the relative contribution of physician, patient, and procedure-specific factors in total polyp, adenoma, and SSP detection rates.

Methods

We performed a retrospective study of patients undergoing screening colonoscopy and used a two-level generalized linear mixed regression model to identify factors associated with polyp detection.

Results

7799 average risk screening colonoscopies were performed between July 2016 and October 2017. The patient factor most strongly associated with increased risk of adenoma and sessile serrated polyp detection was white race (OR 1.21, 95% CI 1.05–1.39 and OR 3.17, 95% CI 2.34–4.30, respectively). Adenomatous (OR 1.92, 95% CI 1.04–3.57) and sessile serrated polyps (OR 5.56, 95% CI 1.37–20.0) were more likely to be found during procedures performed with anesthesia care as compared to those with moderate sedation. Physician with a luminal gastrointestinal focus had increased odds of adenoma detection (OR 1.61, 95% CI 1.02–2.50).

Conclusions

In a multi-level model accounting for clustering effects, we identified patient, provider and procedural factors independently influence adenoma and sessile serrated polyp detection. Our findings suggest that to compare polyp detection rates between endoscopists, even at the same institution, risk adjustment by characteristics of the patient population and practice is necessary.

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9.
Objective.  To study the association between snus use and the risk for cardiovascular disease, i.e. ischemic heart disease and stroke. Design.  Cohort study. Setting.  Sweden. Subjects.  Sixteen thousand six hundred and forty‐two male Swedish twins participating in the Screening Across the Lifespan Twin Study, conducted in 1998–2002, were followed for incident cardiovascular disease. Participants were without a history of cardiovascular disease at baseline and incident cases were identified via the Swedish Cause of Death Register and Hospital Discharge Register. Results.  Overall, there was no association between use of snus and risk for cardiovascular disease. Current snus users, without a smoking history, had a relative risk of 1.00 (95% confidence interval 0.69–1.46) for cardiovascular disease as compared to non users. Corresponding relative risks for ischemic heart disease and stroke were 0.85 (95% confidence interval 0.51–1.41) and 1.18 (95% confidence interval 0.67–2.08), respectively. In smoking adjusted models, risk estimates for ischemic heart disease in relation to snus use were all close to unity regardless of timing or intensity of snus use. However, current heavy snus users (consuming more than four cans week?1) had a relative risk for stroke of 1.75 (95% confidence interval 0.95–3.21). Conclusion.  These data do not support any strong association between snus use and risk for cardiovascular disease.  相似文献   

10.
Background: Despite significant declines in youth cigarette smoking, overall tobacco usage remains over 20% as non-cigarette tobacco product usage is increasingly common and polytobacco use (using 1+ tobacco product) remains steady. Objectives: The present study was designed to identify patterns of youth tobacco use and examine associations with sociodemographic characteristics and tobacco dependence. Methods: The current analysis uses Latent Class Analysis (LCA) to examine the 6,958 tobacco users (n = 2,738 female) in the National Youth Tobacco Survey (2012 and 2013). We used as indicators past month use of tobacco products (cigarettes, cigars, smokeless tobacco, e-cigarettes, hookah, snus, pipes, bidis, and kreteks) and regressed resulting classes on sociodemographic characteristics and tobacco dependence. Results: Nine classes emerged: cigarette smokers (33.4% of sample, also included small probabilities for use of cigars and e-cigarettes), cigar smokers (16.8%, nearly exclusive), smokeless tobacco users (12.3%, also included small probabilities for cigarettes, cigars, snus), hookah smokers (11.8%), tobacco smokers/chewers (10.7%, variety of primarily traditional tobacco products), tobacco/hookah smokers (7.2%), tobacco/snus/e-cig users (3.3%), e-cigarette users (2.9%,), and polytobacco users (1.7%, high probabilities for all products). Compared to cigarette smokers, tobacco/hookah smokers and hookah smokers were more likely to report Hispanic ethnicity. Polytobacco users were more likely to report dependence (AOR:2.77, 95% CI:[1.49–5.18]), whereas e-cigarette users were less likely (AOR:0.49, 95% CI:[0.24–0.97]).Conclusion: Findings are consistent with other research demonstrating shifts in adolescent tobacco product usage towards non-cigarette tobacco products. Continuous monitoring of these patterns is needed to help predict if this shift will ultimately result in improved public health.  相似文献   

11.
AIMS: To investigate the prevalence and patterns of transitions between cigarette and snus use. DESIGN: Cross-sectional study within the population-based Swedish Twin Registry. SETTING AND PARTICIPANTS: A total of 31 213 male and female twins 42-64 years old. MEASUREMENTS: Age-adjusted prevalence odds ratios (POR) and 95% confidence intervals (CIs) described the association between gender and tobacco use, while Kaplan-Meier survival methods produced cumulative incidence curves of age at onset of tobacco use. Life-time tobacco use histories were constructed using ages at onset of tobacco use and current tobacco use status. FINDINGS: Although more males reported ever smoking (64.4%) than females (61.7%), more males were former smokers (POR: 1.33, 95% CI: 1.27-1.39). Males were far more likely to use snus than females (POR: 18.0, 95% CI: 16.17-20.04). Age at onset of cigarette smoking occurred almost entirely before age 25, while the age at onset of snus use among males occurred over a longer time period. Most men began using cigarettes first, nearly one-third of whom switched to using cigarettes and snus in combination. While 30.6% of these combined users quit tobacco completely, only 7.4% quit snus and currently use cigarettes, while 47.7% quit cigarettes and currently use snus. CONCLUSIONS: Current cigarette smoking is more prevalent among Swedish women than men, while snus use is more prevalent among men. Among men who reported using both cigarettes and snus during their life-time, it was more common to quit cigarettes and currently use snus than to quit snus and currently use cigarettes. Once snus use was initiated, more men continued using snus rather than quit tobacco completely.  相似文献   

12.
Objective: Previous epidemiologic studies that have been reported on the association between cigarette smoking and risk of chronic myeloid leukaemia (CML) have remained controversial. A comprehensive meta-analysis was performed to evaluate smoking as a potential relationship factor and incidence of CML.

Methods: Systematic literatures collected from articles published before August 2015 were searched from PubMed, EMBASE and the Cochrane Library. A total of 10 studies (nine case–controls and one cohort) met inclusion criteria of this meta-analysis. Odds ratios (ORs) with 95% confidence interval (CI) were calculated to assess the strength of the association between cigarette smoking and risk of CML in this study. Quality assessments were performed on the studies with the Newcastle-Ottawa Scale. I2 index was used to evaluate heterogeneity. Finally, publication bias was assessed through funnel plots and Begger’s test.

Results: No significant association was observed between ever-smokers and CML when compared among non-smokers (OR?=?1.13, 95% CI: 0.99–1.29) or between subgroups stratified by smoking history, gender, geographical region, study design and source of patients. Our results demonstrate that this association was stronger in individuals who smoked <20 cigarettes/day (OR?=?1.72, 95% CI: 1.06–2.79) vs. individuals who smoked >20 cigarettes/day (OR?=?1.24, 95% CI: 0.55–2.81). Moreover, cumulative smoking of <15, 15–30 and >30 pack-years was associated with ORs of 1.22, 1.32 and 1.39, respectively (P?Conclusion: This meta-analysis suggests that smoking may significantly increase the risk of CML in a dose-dependent manner. However, additional well-designed, prospective cohort studies are required to verify these findings and identify other risk factors associated with CML.  相似文献   

13.
BackgroundTo explore the relationship between sleep disturbances and falls in an elderly Chinese population.MethodsData from 1726 individuals aged 70–87 years from the Rugao Longevity and Ageing Study were used. The Pittsburgh Sleep Quality Index (PSQI) was used to assess sleep variables. Outcomes were falls ≥1 time per year and falls ≥2 times per year.ResultsA total of 22.7% of the participants experienced ≥1 fall, and 9.8% experienced ≥2 falls per year. Poor sleep quality was associated with ≥1 fall (OR 1.08, 95% CI 1.05–1.12; OR 1.27, 95% CI 1.14–1.41) and ≥2 falls (OR 1.08, 95% CI 1.03–1.14; OR 1.28, 95% CI 1.10–1.48), with an increase per PSQI score and SD PSQI score, respectively. In addition, sleep quality, sleep latency, sleep efficiency, and sleep disturbance subcomponents were associated with an increased risk of ≥1 fall with ORs of 1.44 (95% CI, 1.21–1.72), 1.23 (95%CI,1.09–1.40), 1.12 (95%CI, 1.01–1.23) and 1.70 (95% CI,1.35–2.14), respectively, and were associated with an increased risk of ≥2 falls with ORs 1.54 (95%CI, 1.22–1.96), 1.21(95%CI, 1.02–1.44), 1.17 (95% CI 1.02–1.33), and 1.78 (95%CI, 1.31–2.44), respectively. Further, participants slept ≤5 h per night had an increased risk of ≥1 fall (OR 2.34; 95%CI, 1.59–3.46) and ≥2 falls (OR 2.19; 95%CI, 1.30–3.69).ConclusionsPoor sleep quality and several subcomponent sleep symptoms were consistently associated with increased risk of falls ≥1 time and ≥2 times in Chinese elderly. The identification of sleep disturbances may help identify high-risk Chinese elders who may benefit from fall prevention education.  相似文献   

14.
Abstract

Objectives. Daily psychological stress has been proposed as a risk factor for systemic lupus erythematosus (SLE) in Western countries. However, there is little information about the relationship between daily psychological stress and the risk of SLE in a Japanese population. We examined the association between SLE and daily psychological stress.

Methods. A case–control study was conducted to examine the relationship between daily psychological stress and SLE in Japanese females. The participants were 160 female SLE patients and 660 female volunteers. Unconditional logistic regression was used to compute OR and 95% confidence interval (CI), with adjustment for several covariates.

Results. Smoking (OR = 2.59; 95% CI, 1.74–3.86), walking (OR = 1.75; 95% CI, 1.81–2.56) and daily psychological stress (OR = 1.88; 95% CI, 1.14–3.10) were increased in patients with SLE after adjusting for age, region and all factors. Smokers with daily psychological stress (OR = 4.70; 95% CI = 2.53–8.77) were more prevalent than nonsmokers without daily psychological stress in SLE. The multiplicative interaction measures between smoking status and daily psychological stress did not reach statistical significance.

Conclusions. The present study suggests the possibility that daily psychological stress as well as smoking might be associated with an increased risk of SLE.  相似文献   

15.
Background

Gastroesophageal reflux disease (GERD) and dyspepsia are highly prevalent in the general population with significant symptom overlap, while the interaction between both remains poorly understood.

Aim

To examine whether GERD overlapping dyspepsia would have an impact on clinical and psychological features as compared with GERD alone.

Methods

We performed a cross-sectional study in a GERD cohort (n = 868) that was previously recruited from a population-based GERD survey (n = 2752). We compared the clinical and psychological factors between patients with and without dyspeptic symptoms “epigastric pain or burning.” All participants were evaluated with Reflux Disease Questionnaire score, Pittsburgh Sleep Quality Index score, Taiwanese Depression Questionnaire score, and State-Trait Anxiety Inventory score. Endoscopic findings were classified according to the Los Angeles classification.

Results

Among the GERD population, 107 subjects had overlapping “epigastric pain or burning” (GERD-D), and 761 did not have these symptoms (GERD alone). GERD-D subjects had more severe GERD symptoms and were more often associated with irritable bowel syndrome (IBS) (OR 3.54, 95% CI 1.92–6.52) as compared subjects with GERD alone. In addition, GERD-D subjects had lower quality of sleep (OR 1.11, 95% CI 1.01–1.21), higher depression (OR 1.06, 95% CI 1.02–1.10), lower blood pressure (OR 0.45, 95% CI 0.22–0.95), and higher serum total cholesterol levels (OR 2.78, 95% CI 1.36–5.67) than GERD alone.

Conclusions

GERD-D subjects are characterized with worsening clinical symptoms as well as higher psychosocial, IBS, and metabolic comorbidities, but less erosive esophagitis. Our results indicate that clinical awareness of such overlapping condition would help optimize the management of GERD in clinical practice.

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16.
ObjectiveTo compare the hazard for all-cause mortality and mortality due to heart failure (HF) between valproate (VPA) and levetiracetam (LEV)/lamotrigine (LTG) users in patients aged ≥ 65 with comorbidities of epilepsy and HF.MethodsThis was a cohort study using Danish registers during the period from January 1996 to July 2018. The study population included new users of LTG, LEV or VPA. A Cox regression model was used to compute crude and adjusted hazard ratios for the outcome, using an intention-to-treat approach. Average treatment effects (eg, 1-year absolute risks), risk differences and the ratio of risks were computed using the G-formula based on a Cox regression model for the outcomes at the end of the follow-up period.ResultsWe included 1345 subjects in the study population. VPA users (n = 696), when compared to LTG/LEV users (n = 649), had an increased hazard of mortality due to HF (hazard ratio [HR] 2.39; 95% CI 1.02–5.60) and to all-cause mortality (HR 1.37; 95% CI 1.01–1.85) in both crude and adjusted analyses. The 1-year absolute risks for all-cause mortality were 29% (95% CI 25%–33%) and 22% (95% CI 18%–26%) for VPA and LTG/LEV users. For mortality due to HF, 1-year absolute risks were 5% (95% CI 3%–7%) and 2% (95% CI 1%–4%) for VPA and LTG/LEV users. The average risk ratio, with LTG/LEV as the reference group, was 1.31 (95% CI 1.02–1.71) for all-cause mortality and 2.35 (95% CI 1.11–5.76) for HF mortality.ConclusionIn older people with HF and epilepsy, treatment with VPA was associated with a higher risk of all-cause and HF mortality compared to treatment with LTG and LEV.  相似文献   

17.
Objectives: Life style factors have been associated with inflammatory bowel disease (IBD) but there is a lack of data on the exposure of life styles factors before the onset of IBD. Our aim was to study the association between lifestyle factors and the development of IBD in a prospective setting.

Materials and methods: We performed a case control study of 72 patients who later developed ulcerative colitis (UC), 26 patients who developed Crohn’s disease (CD) and 427 healthy controls from the Västerbotten intervention project matched for gender, age, year of health survey and area of residence. At recruitment, participants completed validated lifestyle questionnaires including data on alcohol intake. Information from this was used to assess the connection between lifestyle factors and later developing IBD.

Results: For CD and UC, the median age at diagnosis was 53 and 52 years and median time of survey was 4 and 6 years before diagnosis, respectively. Multivariate odds ratio (OR) showed an association between never smoking and not developing IBD, including both UC and CD, OR (95% CI) 0.341 (0.136–0.853) and 0.473 (0.259–0.864), respectively. Marital status, educational level, alcohol consumption, reported physical activity and use of moist smokeless tobacco (snus) did not differ between patients and controls.

Conclusions: Smoking proves to be a risk factor for both CD and UC in this prospective case-control study. No association was seen for snus users, implying a non-nicotine pathogenic mechanism from combusted tobacco.  相似文献   


18.
BackgroundThere has been an increase in the use of smokeless tobacco recently. Whether smokeless tobacco use may predispose individuals to use other addictive substances is unknown. The use of multiple addictive substances may compound an individual's adverse health effects.MethodsIn a cross-sectional analysis, we used the 2016-2017 Behavioral Risk Factor Surveillance System (BRFSS) survey database to identify all individuals who reported the use of smokeless tobacco and extracted data regarding baseline and demographic patterns, as well as information regarding the use of other addictive substances. Weighted multivariable logistic regression models adjusting for age, gender, race/ethnicity, poverty level, education, employment status, and marital status were used to determine the odds ratios (ORs) for use of alcohol, cigarettes, e-cigarettes, and marijuana among smokeless tobacco users.ResultsWe identified 30,395 (3.38%) individuals in our study population who reported smokeless tobacco use. Compared with non-users, smokeless tobacco users were more likely to be unmarried, male, Caucasian, belonging to the lower socioeconomic strata, and did not have a formal college education (P <0.01). In multivariable analyses, smokeless tobacco use was associated with a higher likelihood of cigarettes use (OR: 1.76 [95% confidence interval {CI}: 1.66-1.86, P <0.01]), e-cigarette use (OR: 1.61 [95% CI: 1.52-1.71, P <0.01]), and heavy alcohol consumption (OR:2.36 [95% CI: 2.17-2.56, P <0.01]) but not marijuana use (OR: 1.11 [95% CI: 0.90-1.38, P = 0.33]).ConclusionIn a large, nationally representative sample, smokeless tobacco use was associated with the increased use of cigarettes, e-cigarettes, and alcohol. Simultaneous use of these substances may compound the adverse health effects of smokeless tobacco use. Public health interventions addressing this concerning trend are warranted.  相似文献   

19.
Background

An optimal surveillance program is important to prevent advanced colorectal neoplasm. In this context, we have evaluated the cumulative risk of high-risk adenoma (HRA) or colorectal cancer (CRC) according to surveillance interval time after polypectomy. In addition, we assessed risk factors for late surveillance to determine whether late surveillance can impact the risk of subsequent advanced colorectal neoplasm.

Methods

This was a multicenter retrospective cohort study involving 3562 subjects who had undergone removal of at least one adenoma at the index colonoscopy and who subsequently underwent a surveillance colonoscopy. The subjects were classified into an early, appropriate or late group depending on the timing of the surveillance colonoscopy, performed using modified U.S. guidelines.

Results

With 3% of the study population with LRA and HRA at the index colonoscopy going on to develop HRA or CRC, the estimated surveillance intervals calculated would be 6.3 [95% confidence interval (CI) 5.42–7.10] years and 3.1 (95% CI 2.61–4.45) years, respectively. The predictors of late surveillance were female gender [odd ratio (OR) 1.21; 95% CI 1.04–1.40], having undergone the procedure in small-to-medium-sized cities (OR 1.92; 95% CI 1.36–2.72) and HRA at index colonoscopy (OR 1.37; 95% CI 1.19–1.59). The risk factors for subsequent HRA or CRC were late surveillance (OR 1.34; 95% CI 1.03–1.74), male gender (OR 2.13; 95% CI 1.54–2.95), having undergone the procedure in small-to-medium-sized cities (OR 1.63; 95% CI 1.11–2.40) and HRA at index colonoscopy (OR 2.60; 95% CI 2.04–3.33).

Conclusions

Women, having undergone the procedure in small-to-medium-sized cities and the presence of an HRA at the index colonoscopy were found to be independent risk factors for late surveillance colonoscopy. Late surveillance is significantly predictive of subsequent HRA or CRC.

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20.
Abstract

Background and study aims: Barrett's esophagus is a premalignant condition in the distal esophagus associated with esophageal adenocarcinoma. Since gastroesophageal reflux is known to be of etiological importance in both Barrett's esophagus and esophageal adenocarcinoma, we aimed to study which endoscopic alterations at the Z-line can be attributed to a previous history of reflux symptoms.

Patients and methods: From 1988, a population cohort in Sweden has been prospectively studied regarding gastrointestinal symptoms, using a validated questionnaire. In 2012, the population was invited to undergo a gastroscopy and participate in the present study. In order to determine which endoscopic alterations that can be attributed to a previous history of gastroesophageal reflux, three different endoscopic definitions of columnar-lined esophagus (CLE) were used: (1) ZAP I, An irregular Z-line with a suspicion of tongue-like protrusions; (2) ZAP II/III, Distinct, obvious tongues of metaplastic columnar epithelium; (3) CLE ≥1?cm, The Prague C/M-classification with a minimum length of 1?cm.

Results: A total of 165 community subjects were included in the study. Of these, 40 had CLE??1?cm, 99 had ZAP I, and 26 had ZAP II/III. ZAP II/III was associated with an over threefold risk of previous GER symptoms (OR: 3.60, CI: 1.49–8.70). No association was found between gastroesophageal reflux and ZAP I (OR: 2.06, CI: 0.85–5.00), or CLE ≥1?cm (OR: 1.64, CI: 0.77–3.49).

Conclusions: In a general community, the only endoscopic alteration to the Z-line definitely linked to longstanding GER symptoms was the presence of obvious tongues of metaplastic columnar epithelium (ZAP II/III).  相似文献   

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