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1.

Background

African–Americans are less affected by photoaging than lighter skin individuals. Although scales for photoaging have been developed for Caucasians and Asians, no scale exists for African–Americans.

Aim

To develop a photonumeric scale for photoaging and to determine factors that contribute to photoaging in African–Americans.

Methods

Five participants' photographs were selected as standards to create a 9-point photonumeric scale (0 = none, 8 = most severe). Three blinded dermatologists used the scale to grade the remaining participants' photographs.

Results

Interrater reliabilities were 0.775 (95% CI: 0.635, 0.880) for trial 1 and 0.832 (0.747, 0.883) for trial 2. Intrarater reliabilities, assessed over a 1 week interval, were 0.863 (0.727, 0.940), 0.928 (0.890, 0.954), and 0.866 (0.739, 0.935) for the three graders, indicating strong agreement. Photoaging scores were then correlated with participants' survey on lifestyle factors, which yielded age as a significant predictor (r = 0.91, p < 0.001). Furthermore, multiple regression model to predict facial photoaging (adjusted R2 = 0.849) selected age (b1 = 0.111, p < 0.001), sun exposure (b2 = 0.206, p = 0.014), and gender (b2 = ?0.388, p = 0.063) as the most important variables.

Conclusions

A reliable photonumeric scale for photoaging in African Americans was developed. Age, sun exposure, and male gender were found to be contributory factors to photoaging.  相似文献   

2.

Background

Disparities in health and healthcare are widely documented for underrepresented racial and ethnic populations across a spectrum of diseases and care settings. An evidence base for addressing racial and ethnic disparities in health and healthcare requires investigators trained to conduct health disparities research.

Objective

To increase knowledge, stimulate interest, teach skills to evaluate and conduct, and foster collaborations in health disparities research.

Design

We designed, implemented and evaluated a Health Disparities Research Curriculum (HDRC).Participants were early-stage investigators.

Intervention

HDRC included twelve monthly sessions during 2015–2016. Instructors were mostly HDR investigators. Sessions combined didactic presentations, discussions, small group activities, and participant presentations.

Measures

Pre- and post-surveys to assess participants' perceptions of knowledge and skills.

Results

Of 21 enrollees, 13 were from under-represented groups and 14 were women. Four reported some prior training in HDR, and 12 reported currently conducting HDR.Among the 12 participants who completed both the pre and post HDRC survey, initially the most commonly cited barriers to pursuing HDR were lack of knowledge (N = 6) and funding (N = 7). In the post-survey, the number citing lack of knowledge decreased (N = 2) and the number listing lack of funding increased (N = 9). There were increases in the number of participants reporting increased knowledge of HDR methods (pre-post: 4 vs. 8) and competence to design (3 vs. 7) and implement (2 vs. 9) HDR research.

Conclusions

The Duke HDRC augments efforts to reduce health disparities by providing training in HDR for young investigators. Our data indicate that the course was feasible, well-received, and increased perceived knowledge and competence. HDRC and similar courses may increase the quantity, quality and scope of HDR and thus move us closer to health equity.  相似文献   

3.

Background

African Americans (AA) are a third as likely as Caucasians to become registered organ donors at the Department of Motorized Vehicles (DMV). The Department of Health and Human Services has set the goal that at least 50% of adults in each state are registered donors.

Aims

The purpose of this study was to explore the personal, behavioral and environmental factors associated with AA donor registration decision-making at the DMV.

Methods

Guided by the Social Cognitive Theory, 13 focus groups (n = 100 participants) were conducted with AAs within 3 months of visiting a DMV and making a decision regarding whether to become or to not become a registered donor. The data were analyzed using inductive thematic and qualitative content analyses.

Results

Study participants expressed a desire to learn more information while waiting in line at the DMV. Knowing a family member or friend in need of an organ transplant, and the desire to make one's own decision were two salient factors associated with the decision to become a registered organ donor. Several aspects of the DMV environment (e.g., noisy, overcrowded, lacking privacy) were cited as deterrents to becoming a registered donor.

Discussion

This study highlights the personal, behavioral and environmental factors associated with AA organ donor registration decision-making at the DMV.

Conclusion

The DMV is a setting where many adults make a decision about organ donation. Policies that create an environment in the DMV to support informed decision-making (e.g., privacy, informed clerks, available educational materials, etc.) are indicated.  相似文献   

4.

Background

Heart age is an estimate of the age of a person's cardiovascular system given their cardiovascular disease (CVD) risk factors. The difference between a person's chronological age and heart age (excess heart age) represents their added CVD risk.

Objective

To examine racial differences in excess heart age and whether race impacts the association between excess heart age and CVD mortality.

Methods

This analysis included 5110 participants (2449 non-Hispanic white, 1287 non-Hispanic black, and 1374 Mexican-American) from the NHANES III who were free of CVD. Heart age was calculated using the sex-specific non-laboratory-based Framingham risk prediction functions. Multivariable Cox proportional-hazards regression models were used to evaluate the relationship (overall and by race) between excess heart age and CVD mortality.

Results

Mean excess heart age was greatest in non-Hispanic blacks (13.0 years), followed by Mexican-Americans (10.5 years), and non-Hispanic whites (8.5 years); p < 0.001 for pairwise differences. Over a mean follow-up of 13.0 years, 394 CVD deaths occurred. Each 10 years of excess heart age was associated with 65% increased risk of CVD mortality (HR, 95% CI: 1.65, 1.53–1.78). This association was stronger in non-Hispanic whites (1.83, 1.63–2.02) compared to non-Hispanic blacks (1.50, 1.29–1.72) and Mexican American (1.60, 1.33–1.87), interaction p = 0.065.

Conclusions

Compared to non-Hispanic whites, non-Hispanic blacks and Mexican Americans have more excess heart age, but the risk of CVD death for the same level of excess heart age appears more pronounced in non-Hispanic whites. Further investigation is needed to show the usefulness of these findings in directing future efforts and resource allocation for reduction of health disparities between ethnic groups.  相似文献   

5.

Background and objective

Sociodemographic and lifestyle factors, physical activity, diet, and nutrients are important in the understanding of obesity. The possibly direct or indirect nature of the associations among these factors and the eventual link to obesity is not well understood. In this study, we assess the indirect association between socio-demographic factors and obesity.

Design

A case-control study involving African American women conducted at Howard University Cancer Center.

Participants and methods

One hundred ninety eight participants gave information on anthropometric measurements, intake of dietary supplements and nutrients, socio-demographic factors (age, marital status, income and education) and physical activity. Path analysis was utilized to assess associations between socio-demographic factors and obesity through physical activity, dietary supplements and nutrients, smoking or alcohol consumption.

Main results

The mean age of the participants was (55 ± 12 years), with 50% being obese (BMI ≥ 30 kg/m2). Obesity level decreased by approximately 7% for every one level increase in education via its prior effect on vigorous physical activity. Age had a significant positive indirect effect on obesity through vigorous physical activity – with obesity levels increasing by approximately 6% for every one year increase in age via its prior effect on vigorous physical activity.

Conclusions

Vigorous physical activity mediates the association between education and age on obesity.  相似文献   

6.

Background

The reported associations of blood lipid profiles with asthma are ambiguous.

Objective

To explore the association between asthma and the serum levels of high-density lipoprotein cholesterol (HDL-C) and low-density lipoprotein cholesterol (LDL-C).

Methods

A systematic search was performed in the PubMed, MEDLINE, Cochrane Library, and Chinese Biomedical Literature databases. Ten studies were identified. We divided these studies into 2 subgroups according to age: children (<18 years old) and adults (≥18 years old).

Results

In children, the asthma group had lower HDL-C levels (weighted mean difference, ?3.44; 95% confidence interval [CI], ?5.83 to ?1.04; P = .005) compared with the nonasthma group, whereas the serum levels of LDL-C in these 2 groups were not statistically different. In contrary, in adults, the asthma group had higher LDL-C levels (weighted mean difference, 8.95; 95% confidence interval, 3.55–14.35; P = .001) compared with the nonasthma group, whereas the HDL-C levels were not statistically different.

Conclusion

There is a significant association between asthma and the serum levels of HDL-C and LDL-C. Moreover, this association differs in children and adults.  相似文献   

7.

Background

Chronic rhinosinusitis (CRS) is associated with significant losses of patient productivity that cost billions of dollars every year. The causative factors for decreases in productivity in patients with CRS have yet to be determined.

Objective

To determine which patterns of CRS symptoms drive lost productivity.

Methods

Prospective, cross-sectional cohort study of 107 patients with CRS. Sinonasal symptom severity was measured using the 22-item Sinonasal Outcomes Test, from which sleep, nasal, otologic or facial pain, and emotional function subdomain scores were calculated using principal component analysis. Depression risk was assessed with the 2-item Patient Health Questionnaire (PHQ-2), whereas nasal obstruction was assessed with the Nasal Obstruction Symptom Evaluation (NOSE) instrument. Lost productivity was assessed by asking participants how many days of work and/or school they missed in the last 3 months because of CRS. Associations were sought between lost productivity and CRS symptoms.

Results

A total of 107 patients were recruited. Patients missed a mean (SD) of 3.1 (12.9) days of work or school because of CRS. Lost productivity was most strongly associated with the emotional function subdomain (β = 7.48; 95% confidence interval [CI], 5.71–9.25; P < .001). Reinforcing this finding, lost productivity was associated with PHQ-2 score (β = 4.72; 95% CI, 2.62–6.83; P < .001). Lost productivity was less strongly associated with the nasal symptom subdomain score (β = 2.65; 95% CI, 0.77–4.52; P = .007), and there was no association between lost productivity and NOSE score (β = 0.01; 95% CI, ?0.12 to 0.13; P = .91).

Conclusion

Symptoms associated with depression are most strongly associated with missed days of work or school because of CRS. Further treatment focusing on depression-associated symptoms in patients with CRS may reduce losses in productivity.  相似文献   

8.

Objective

To describe the perspectives and experiences of athletic trainers, coaches, and student-athletes approximately three years post-implementation of the NCAA sickle cell trait (SCT) screening policy.

Participants

Two-hundred and eight student-athletes, 32 athletic trainers, and 43 coaches from 10 NCAA Division I (DI) institutions in North Carolina from January to June 2014.

Methods

Two online surveys were used to assess knowledge, perspectives, and experiences.

Results

Athletic staff were more supportive than student-athletes of the need for the policy. Noted challenges included variation in implementation and follow-up for SCT-positive athletes, financial costs to institutions and athletes, and timing of the screening.

Conclusions

More education about SCT is needed for student-athletes and athletic staff in order to help make the implementation more successful. All parties need to be in agreement regarding the importance of knowing which student-athletes have SCT and how that information will be utilized.  相似文献   

9.

Background

Eosinophilic esophagitis (EoE) has repeatedly been associated with atopic manifestations, which are reported more frequently in these patients than in the general population.

Objective

To systematically assess the evidence and strength of the associations between EoE and atopy.

Methods

We performed a systematic search of the MEDLINE, EMBASE, and SCOPUS databases for case-control studies comparing the frequency of atopic diatheses among patients with EoE and control subjects representing the general population without EoE. Using random-effects meta-analyses, we calculated summary estimates, including 95% confidence intervals (CIs), for bronchial asthma, atopic rhinitis, and eczema. Publication bias risks were assessed by means of funnel plot analysis and specific statistical tests.

Results

Of the 2,954 references identified, data were collected from 21 studies, including a total of 53,542 patients with EoE and 54,759 controls. The criteria for defining a diagnosis of atopy in patients with EoE or controls was not structurally considered in most of the studies. Overall, allergic rhinitis was significantly more common among patients with EoE compared with control subjects (odds ratio [OR], 5.09; 95% CI, 2.91–8.90; I2 = 86.7%) as were bronchial asthma (OR, 3.01; 95% CI, 1.96–4.62; I2 = 84.5%) and eczema (OR, 2.85; 95% CI, 1.87–4.34; I2 = 57.1%). Food allergies and other atopic conditions were also assessed. No significant publication bias was found for studies dealing with allergic rhinitis and eczema in EoE.

Conclusion

Despite pointing to a significant association between atopy and EoE, most of the studies provided no normalized diagnostic criteria for atopy. Further research should provide clear and standardized definitions of such conditions.

Trial Registration

www.crd.york.ac.uk/PROSPERO Trial Identifier: CRD42016036161.  相似文献   

10.

Background

Stress is associated with unhealthy behaviors and premature morbidity and mortality, especially among those of low socioeconomic status (SES). Clarifying the roles of stress-related risk and protective factors can guide interventions designed to reduce stress and improve health among socioeconomically disadvantaged populations.

Purpose

(1) Replicate prior research showing that lower SES is associated with higher stress in a predominantly racial minority, socioeconomically disadvantaged sample, and (2) test the hypothesis that different types of social support (a protective factor) mitigate the deleterious effects of SES on self-reported perceived stress.

Methods

Low-income patients (N = 508, 54% male, 68% African American, Mage = 28) from a publicly-funded clinic provided demographic information and then completed measures of perceived stress and social support. Four types of social support were assessed (viz., affectionate, emotional/informational, positive social interaction, and tangible). Structural equation modeling tested the hypothesized associations among SES, social support, and stress.

Results

Individuals of lower SES, β = ?0.27 (0.08), p < 0.01, and lower overall social support, β = ?0.47 (0.05), p < 0.001, reported higher stress. Social support moderated associations between SES and stress, with participants with lower SES benefitting the most from social support. Of the four types of social support that were measured, positive social interaction was the strongest moderator, β = 0.20 (0.08), p = 0.01.

Conclusions

The associations among SES, stress, and social support corroborate prior research. Positive social interaction was particularly important for decreasing stress among socioeconomically disadvantaged persons.  相似文献   

11.

Objectives

The menopause is a natural biological process that is happened by a permanent regal stop due to the loss of performance. The aim of this research is to evaluate the effect of lavender aromatherapy on the menopause symptoms.

Study design

This double-blind cross over clinical trial carried out on 100 menopause women (between 45 and 155 years old) referring to health centers in Ardabil in 2013-14. The samples blocked randomly, placed in two experimental (Lavender) and control (diluted milk) groups. Lavender aroma is smelled two times daily for 20 min during 12 weeks by research subjects. Data were collected by Green questionnaire and the analysis of data carried out in SPSS v.16 by paired t-test.

Main outcome measures

The level of the symptoms has been decreased significantly after using lavender.

Results

Comparing the level of the symptoms before and after using lavender in experimental group suggested that the rate of the menopause symptoms has been decreased significantly (P = 0.000). The comparison of the mean of the menopause symptoms after intervention between two groups suggested that the menopause symptoms in the experimental group had a significant decrease comparing the control group (P = 0.000).

Conclusion

Using the lavender aromatherapy decreases menopause symptoms. According to the undesirable effect of the menopause symptoms on the quality of life of the menopausal women, these interventions may be instructed by midwives in the treatment and care centers as a health activity.  相似文献   

12.

Background

Little is known about the joint effects of maternal asthma and maternal depression on childhood asthma.

Objective

To examine whether maternal depression and maternal asthma lead to greater risk of childhood asthma than maternal asthma alone.

Methods

Cross-sectional studies of children (6–14 years old) in San Juan, Puerto Rico (n = 655) and Sweden (n = 6,887) were conducted. In Puerto Rico, maternal depressive symptoms were defined using the Center for Epidemiologic Studies Depression Scale (CES-D) questionnaire. In Sweden, maternal physician-diagnosed depression was derived from national registries, and maternal depressive symptoms were defined using an abbreviated CES-D questionnaire. Childhood asthma was defined as physician-diagnosed asthma plus current wheeze (in Puerto Rico) or plus medication use (in Sweden). Logistic regression was used for multivariable analysis.

Results

Compared with Puerto Rican children whose mothers had neither asthma nor depressive symptoms, those whose mothers had asthma but no depressive symptoms had 3.2 times increased odds of asthma (95% confidence interval [CI] = 2.1–4.8) and those whose mothers had asthma and depressive symptoms had 6.5 times increased odds of asthma (95% CI = 3.3–13.0). Similar results were obtained for maternal depression and maternal asthma in the Swedish cohort (odds ratio for maternal asthma without maternal depression = 2.8, 95% CI = 2.1–3.7; odds ratio for maternal asthma and maternal depression = 4.0, 95% CI = 1.7–9.6). Although the estimated effect of maternal asthma on childhood asthma was increased when maternal depressive symptoms (Puerto Rico) or maternal depression (Sweden) was present, there were no statistically significant additive interactions.

Conclusion

Maternal depression can further increase the risk of asthma in children whose mothers have a history of asthma.  相似文献   

13.

Objective

To provide an overview of studies contributing to the understanding of immunologic, microbial, and epithelial interactions in atopic dermatitis.

Data Sources

PubMed literature review (2000–2017) and meeting abstracts from recent international dermatology conferences.

Study Selections

Articles discussing primarily human disease.

Results

Clinical studies showed that atopic dermatitis is a type 2 immune-centered disease with a systemic inflammatory component but with heterogeneous treatment responses. This suggests that other factors are likely involved in shaping the skin disease phenotype, including microbial dysbiosis and epidermal barrier dysfunction.

Conclusion

Recent clinical investigation has significantly expanded our knowledge on disease pathogenesis in atopic dermatitis, and current and future clinical trials will most likely further help to elucidate this complex, heterogeneous skin disease.  相似文献   

14.

Background

GPR56/ADGRG1 is a member of the adhesion-class G protein-coupled receptor (aGPCR) family important in brain development, oncogenesis and tumor metastasis. Like other aGPCRs, GPR56 is cleaved at the GPCR proteolysis site (GPS) motif into an N-terminal fragment (NTF) and a C-terminal fragment (CTF). Existence of soluble GPR56 (sGPR56) has been shown in vitro, however the underlying mechanism and its pathophysiologic role remains undetermined.

Objective

To assess the presence of sGPR56 in human serum using ELISA assay and compare the serum sGPR56 levels among patients of various chronic inflammatory diseases and healthy subjects.

Patients and methods

In this study, serum samples from patients with systemic lupus erythematosus (SLE) (n = 57), rheumatoid arthritis (RA) (n = 95), Sjögren's syndrome (SS) (n = 29), ankylosing spondylitis (AS) (n = 51), and normal controls (n = 81) were analyzed using sGPR56-specific ELISA.

Result

We show that serum sGPR56 levels are increased in patients of RA, but not in those with SLE, SS and AS. Intriguingly, serum sGPR56 levels in RA patients correlated with positive rheumatoid factor, a marker of bone erosion and poor outcome. In addition, an elevated sGPR56 level is also noted in RA patients with higher tumor necrosis factor level.

Conclusion

we conclude that sGPR56 is present in vivo and sGPR56 level is elevated in certain chronic inflammatory diseases such as RA. Hence, sGPR56 might be considered a potential biomarker for RA disease progression.  相似文献   

15.

Background

Few interventions have focused on the difficulties that African American women face when managing asthma.

Objective

To evaluate a telephone-based self-regulation intervention that emphasized African American women's management of asthma in a series of 6 sessions.

Methods

A total of 422 African American women with persistent asthma were randomly assigned to either an intervention or control group receiving usual care. Behavioral factors, symptoms and asthma control, asthma-related quality of life, and health care use at baseline and 2 years after baseline were assessed. Generalized estimating equations were used to assess the long-term effect of the intervention on outcomes.

Results

Compared with the control group, those who completed the full intervention (6 sessions) had significant gains in self-regulation of their asthma (B estimate, 0.73; 95% CI, 0.17–1.30; P < .01), noticing changes to their asthma during their menstrual cycle (B estimate, 1.42; 95% CI, 0.69–2.15; P < .001), and when having premenstrual syndrome (B estimate, 1.70; 95% CI, 0.67–2.72; P < .001). They also had significant reductions in daytime symptoms (B estimate, ?0.15; 95% CI, ?0.27 to ?0.03; P < .01), asthma-related hospitalization (B estimate, 0.51; 95% CI, 0.00–1.02; P < .05), and improved asthma control (B estimate, 1.34; 95% CI, 0.57–2.12; P < .001). However, neither grouped changed over time in outcomes.

Conclusion

Despite high comorbidity, African American women who completed a culturally responsive self-management program had improvements in asthma outcomes compared with the control group. Future work should address significant comorbidities and psychosocial issues alongside asthma management to improve asthma outcomes in the long term.

Trial Registration

clinicaltrials.gov Identifier NCT01117805.  相似文献   

16.

Background

Circadian rhythms underlie many immune responses and allergic diseases. Subcutaneous immunotherapy (SCIT) can result in adverse reactions; however, it is unclear whether such reactions have a diurnal pattern.

Objective

To assess whether the timing of SCIT affects the rate of adverse reactions.

Methods

This study was a retrospective medical record review of adult patients (n = 289) who received SCIT at the Northwestern Medical Faculty Foundation, Chicago, Illinois, during a 10-year period (2004–2014). Injections were given in the outpatient setting. There were a total of 17,457 injections with 574 reactions. Covariates included age, sex, median income, asthma status, vial contents, number of injections, and previous immunotherapy reactions. Logistical regression was used to calculate the odds of having a reaction with time of SCIT administration as the primary determinate.

Results

Immunotherapy reactions occurred more frequently after afternoon or evening (pm) injections (328/8721 = 3.8%) vs morning (am) injections (246/8736 = 2.8%), (χ2 = 12.26, P < .01). Systemic reactions, defined as World Allergy Organization grade 1 or higher, did not have diurnal variation (59/8721 = 0.67% for pm vs am 56/8736 = 0.64% for morning; χ2 = 0.08; P = .77). pm injections resulted in higher odds of reaction compared with am injection in a fully adjusted logistic regression model (odds ratio = 1.43; 95% confidence interval, 1.20–1.70; P < .01). When considering time as 4 categories, the highest odds of reaction were noted for the period from 15:01 to 17:30 (odds ratio, 1.55; 95% confidence interval, 1.21–2.00; P < .01).

Conclusion

pm injections of SCIT are associated with increased cutaneous reaction rates when compared with am injections. In patients experiencing bothersome local reactions, it may be beneficial to administer SCIT in the morning.  相似文献   

17.

Background

Skin prick tests (SPTs) and measurements of serum specific immunoglobulin E (sIgE) antibodies are the most commonly used diagnostic tools for confirming sensitization. However, disagreement between the tests has been observed.

Objective

To compare SPT and the CAP system for diagnosis of sensitization to common inhalant allergens.

Methods

Subjects included 2,635 patients 10 to 90 years old who underwent analyses by SPT and CAP at the Dong-A University Hospital (Busan, Korea) from June 2011 through May 2016. The 2 test results were compared for 17 inhalant allergens.

Results

Agreement between the SPT and sIgE level was 75.3%. Overall agreement was moderate (κ = 0.59), with strong agreement for house dust mites and birch (κ > 0.7) and weak agreement for Tyrophagus putrescentiae and dog (κ < 0.3). When CAP was compared with SPT as the reference, the sensitivity was 75.8% and the specificity was 75.2%. Mean wheal size by SPT showed a positive correlation with sIgE levels (r = 0.59), which decreased with age.

Conclusion

There was a discrepancy between SPT and CAP for diagnosing allergic sensitization among inhalant allergens. The allergic sensitization and correlation between the tests decreased with age. Cautious interpretation of the clinical relevance of allergen sensitization based on SPT and CAP results is required, especially in older patients.  相似文献   

18.

Objective

To validate an ocular phantom as a realistic educational tool utilizing in vivo and phantom optic nerve sheath (ONS) images obtained by ultrasound.

Methods

This prospective study enrolled 51 resident physicians from the Denver Health Residency in Emergency Medicine (EM) and 10 ultrasound fellowship-trained EM attending physicians. Participants performed optic nerve sheath diameter (ONSD) measurements on five in vivo and five phantom ocular ultrasound images and rated the realism of each image on a 5-point Likert scale. Chi-square analysis was performed to evaluate the subjective “realness” of in vivo and phantom images.

Results

Sixty-one participants performed ONSD measurements. Mean Likert scale values were 3.43 (95% confidence interval: 3.31–3.55) for in vivo images and 3.41 (95% confidence interval: 3.28–3.54) for phantom images. There was no statistical difference in subjective “realness” between in vivo and phantom ONSD ultrasound images among EM residents. Ultrasound fellowship-trained EM attending physicians aptly differentiated between in vivo (p < 0.01) and phantom (p < 0.01) images, as compared with EM residents.

Conclusion

Our ocular phantom simulates in vivo posterior ocular anatomy. EM resident physicians found the phantom indistinguishable from in vivo images. Our ONS model provides an inexpensive and realistic educational tool to teach bedside ONSD sonography.  相似文献   

19.

Background

The clinical characteristics of patients with chronic obstructive pulmonary disease overlapped with bronchial asthma (COPD-BA) have not been discussed thoroughly.

Objective

To reveal the clinical features of patients with COPD-BA, to evaluate the risk factors of COPD-BA, and to provide suggestions for COPD individualized therapy.

Methods

A retrospective observational study was performed. A total of 182 patients with COPD (90 with COPD-BA and 92 with pure COPD) were recruited in the study. Information on the following items was collected: demographics, clinical manifestations, complications, laboratory findings, other histories, and inpatient treatments during exacerbation.

Results

A total of 182 patients were diagnosed with COPD, with 90 (49.45%) being classified as having COPD-BA. Patients with COPD-BA were more likely to be female (P = .004) and experienced more severe respiratory exacerbations (P = .04) despite being younger (P = .008). Those patients at onset of recurrent cough and sputum production were younger (P = .001). Significantly, a positive asthmatic family history (P = .03) was observed. Patients with COPD-BA usually had higher level of total serum IgE (although no differences were observed), had higher positive rates of the serum specific IgE (P = .004), and were more like to have an allergic history (P = .003). Allergic factor was the risk factor of COPD-BA (odds ratio, 4.477). During hospitalization, patients with COPD-BA tended to be treated with systemic corticosteroids (P = .008).

Conclusion

Patients with COPD-BA were characterized by persistent airflow limitation with unique clinical features. Allergic factor was associated with the presence of asthmatic characteristics in patients with COPD. When hospitalized for exacerbation, the individualized therapy for COPD-BA might include the use of corticosteroids systemically.  相似文献   

20.

Background

The evaluation of antibiotic immediate-type hypersensitivity is intricate because of nonstandardized skin testing and challenge method variability.

Objective

To determine the safety outcomes and risk factors for antibiotic challenge reactions in patients reporting a history of antibiotic immediate-type hypersensitivity.

Methods

A 5-year retrospective review of patients evaluated for immediate-type antibiotic allergy was conducted. Data analyzed included patient demographics, index reaction details, and outcomes of skin testing and challenges, classified as single-step or multistep.

Results

Antibiotic hypersensitivity history was identified in 211 patients: 78% to penicillins, 10% to fluoroquinolones, 7.6% to cephalosporins, and 3.8% to carbapenems. In total, 179 patients completed the challenges (median age 67 years, range 50–76 years, 56% women), and compared with nonchallenged patients, they reported nonanaphylactic (P < .001) and remote index (P = .003) reactions. Sixteen patients (8.9%) experienced challenge reactions (5 of 28 for single-step challenge, 11 of 151 for multistep challenge), and 11 of these patients had negative skin testing results before the challenge. Challenge-reactive patients were significantly younger (P = .007), more often women (P = .036), and had additional reported antibiotic allergies (P = .005). No correlation was detected between the reported index and observed challenge reaction severities (κ = ?0.05, 95% confidence interval ?0.34 to 0.24). Anaphylactic rates were similar during single-step and multistep challenges (3.6% vs 3.3%).

Conclusion

In the present population, younger women with multiple reported antibiotic allergies were at greatest risk for challenge reactions. Negative skin testing results did not exclude reactions, and index severity was not predictive of challenge outcome. The multistep and full-dose methods demonstrated a comparable reaction risk for anaphylaxis.  相似文献   

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