Older adolescents and young adults willingness to receive the COVID-19 vaccine: Implications for informing public health strategies

ImportanceThe success in ending the COVID-19 pandemic rests partly on the mass uptake of the COVID-19 vaccine. Little work has been done to understand vaccine willingness among older adolescents and young adults. This is important since this age group may be less likely to adhere to public health guidelines.ObjectiveTo understand willingness of getting a vaccine and reasons for vaccine hesitancy among a sample of older adolescents and young adults.DesignData were from the Well-Being and Experiences study (The WE Study), a longitudinal community-based sample of older adolescents and young adults collected from Winnipeg, Manitoba, Canada from 2017 to 2020 (n = 664).SettingThe study setting was a community-based observational longitudinal study.ParticipantsParticipants for the study were aged 14 to 17 years old at baseline in 2016–17 (n = 1000). Data were also collected on one parent/caregiver. Waves 2 (n = 747) and 3 (n = 664) were collected in 2019 and 2020, respectively.ExposuresThe main exposures were sociodemographic factors, health conditions, COVID-19 knowledge, and adversity history.Main OutcomesThe main outcomes were COVID-19 vaccine willingness, hesitancy, and reasons for hesitancy.ResultsWillingness to get a COVID-19 vaccine was 65.4%. Willingness did not differ by age, sex, or mental health conditions, but did differ for other sociodemographic characteristics, physical health conditions, COVID-19 knowledge, practicing social/physical distancing, and adversity history. The most common reasons for not wanting a vaccine were related to safety, knowledge, and effectiveness. Sex differences were noted.Conclusions and RelevanceIncreasing uptake of the COVID-19 vaccine among older adolescents and young adults may rely on targeting individuals from households with lower income, financial burden, and adversity history, and generating public health messaging specifically aimed at vaccine safety, how it works to protect against illness, and why it is important to protect oneself against a COVID-19 infection.     

中国女性青年人体惯性参数的CT—图像分析法测定及其回归方程的研究

采用CT成像和图像分析技术，在尸体研究的基础上，对50例女性样本（18～23岁）进行全身CT横断层扫描、图像分析和测算以及建立数学模型等方面的研究。获得了人体的质量分布、质心位置和转动惯量等惯性参数。据此，建立了直接计算中国女性青年人体各环节惯性参数的二元回归方程。为中国人体运动学和动力学研究提供了基础数据；也为运动员的选材提供了有力的手段。     

青少年身体自我概念与参与体育锻炼的关系研究

目的试图通过实证性研究考查我国部分青少年的身体自我概念水平与体育锻炼情况的关系。方法以5所1379名中学生为被试,身体自我描述问卷(简称PSDQ)和自编的体育锻炼情况调查表为研究工具。结果男中学生身体自我概念中除了健康维度外,其他维度的得分均显著高于女生(P<0.01);体育锻炼的各指标,即锻炼年限等均可以在某种程度上由身体自我概念的运动能力维度来预测。结论青少年的身体自我概念存在性别差异;身体自我概念的各个维度及总分与体育锻炼情况之间存在很多显著相关。     

Effect of Age and Sex on Stroke Mortality of Young and Middle-aged Adults in China, 2002–2019, and Predictions to 2030

Objective This study aimed to examine the trends in stroke mortality among young and middle-aged adults in China.Methods Data were obtained from the China national vital registration system. Significant changes in mortality were assessed by Joinpoint regression. Age-period-cohort analysis was used to explain the reasons for the changes. Future mortality and counts were predicted by the Bayesian age-period-cohort model.Results Between 2002 and 2019, a total of 6,253,951 stroke mortality in young ...     

降纤酶治疗青年人短暂性脑缺血发作的临床研究

目的 探讨降纤酶对青年人短暂性脑缺血（ＴＩＡ）发作的治疗效果。方法 将７２例患者随机分为两组。治疗组３７例,给予降纤酶静滴至ＴＩＡ发作终止或治疗达１周;对照组３５例,给予阿司匹林、尼莫地平、低分子右旋糖酐、脉络宁治疗２周。两组于治疗前、后分别采静脉血检测血浆纤维蛋白原、红细胞压积、全血粘度和血浆粘度的变化。结果 总有效率治疗组为９１．６６％,对照组为７７．１４％,２组间有显著性差异（Ｐ〈０．０１）     

青年与老年急性心肌梗塞临床差异性探讨

目的 :探讨青年与老年急性心肌梗塞 (AMI)的临床特点。方法 :对 1 5例青年组 (年龄≤ 40岁 )与 1 4 3例老年组 (年龄≥ 6 5岁 ) AMI的临床资料进行了对比分析。结果 :青年组 AMI吸烟者占 73.3% ,明显高于老年组 (P<0 .0 1 )。老年组 AMI发病率 38.9% ,无心绞痛者占 37.8% ,合并心力衰竭、心源性休克及病死率分别为 2 9.4%、2 2 .4%及 2 7.3% ,均明显高于青年组 (P<0 .0 5 )。结论 :青年组 AMI吸烟者明显高于老年组 ,老年组 AMI发病率、无心绞痛者、合并心力衰竭、心源性休克及死亡率均明显高于青年组     

Improved survival in young women with breast cancer

Background: Young age has been hypothesized to be an adverse prognostic factor for women with breast cancer. This association, based on historical data, may not reflect recent advances in breast cancer management. Methods: A retrospective study was conducted of all women age 30 or younger who underwent definitive operation at our institution for primary operable breast carcinoma during one of two consecutive 20-year periods (1950–1969 or 1970–1989). All cancers were restaged according to current staging criteria. Actuarial survival and recurrence-free survival rates from the two patient eras were compared with each other and with published statistics for older breast cancer patients. Results: Eligibility criteria were met by 81 women from the 1950–1969 era and 146 women from the 1970–1989 era. Histologic diagnoses, tumor sizes, incidence of axillary nodal metastases, number of positive nodes, and American Joint Committee on Cancer stage at presentation were similarly distributed in the two eras. Despite these similarities, improved survival (p=0.009) was observed in the later era. Local recurrences were also more common (p<0.05) in the later era in association with less extensive resections. These local recurrences had an adverse impact on recurrence-free survival in the later era, but no concomitant decrease in overall survival was observed. Node-positive patients who received chemotherapy demonstrated a trend toward improved survival (p=0.06) compared with node-positive patients who did not. Survival for patients in the later era was similar to that for older women as reported in other published series. Conclusions: The stage of presentation of breast cancer in women 30 years or younger appears unchanged from prior decades, but survival has improved in association with the use of less extensive surgical resections and the introduction of cytotoxic chemotherapy. With current treatment, primary operable breast cancer in young women appears to have a similar prognosis to breast cancer in older women.Results of this study were presented at the 47th Annual Cancer Symposium of The Society of Surgical Oncology, Houston, Texas, March 17–20, 1994, and was judged Best Clinical Paper in the Resident/Fellow Essay Contest.     

合肥郊区0—6岁儿童营养状况分析

目的：了解合肥郊区儿童的营养状况,评价农村儿保工作的质量。方法：于1990－1995年按既定诊断标准逐年调查全区0－6岁儿童佝偻病、缺铁性贫血（IDA）及营养不良的患病情况。结果;全区儿童营养不良、佝楼病及IDA的患病率分别为0.25％－1.06％,5.72％－18.44％及8．33％－42.9％;1992－1995年营养不良患病率有逐年下降的趋势,而佝偻病及贫血则相反;婴幼儿较学龄前儿童佝偻病患病情况严重,而贫血则相反;男女童营养状况无差异;经济状况较好的近郊儿童的营养状况明显好于经济状况较差的远郊儿童。结论：农村儿保工作的重点仍应放在营养缺乏病的防治上．对婴幼儿重点在佝偻病,学龄前儿童重点在IDA。     

青年乳腺癌的临床分析

1970年2月～1992年11月，共收治青年女性原发乳腺癌（年龄＜30岁）90例，占同期病人的4．46％，其中84例在我院外科行手术治疗。非青年对照组599例。用Kaplan－Meier估计和Log－rank检验及Breslow检验对四个有显著影响的预后因素（临床分期、淋巴结情况、组织学类型、肿物大小）进行单因素分析和调整分析，结果表明青年乳腺癌死亡申显著高于非青年组病例。     

年轻妇女子宫内膜癌的高危险因素-多囊卵巢

目的:探讨年轻妇女子宫内膜癌与多囊卵巢的关系.方法:对15例患者术前用彩超测量子宫内膜厚度(双层法);术中测量卵巢长、宽径,按"π/6×长×宽2"公式计算两侧卵巢体积;术后常规病理检查.结果:15例中多囊卵巢者11例(73.3%),双侧卵巢体积均明显增大(平均卵巢体积22.94cm3),是非多囊卵巢者的3.55倍;均有明显月经紊乱,其中反复激素治疗8例(72.7%).而平均子宫内膜厚度为2.35cm,约为正常子宫内膜厚度的2倍左右.结论:多囊卵巢患者自身内源性雌激素增多和治疗过程中外源性雌激素应用所导致的子宫内膜增厚是年轻妇女子宫内膜癌的高危险因素.