Clinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden.
Cyclo AB, Stockholm, Sweden.
Int J Epidemiol. 2019 Oct 1;48(5):1604-1613. doi: 10.1093/ije/dyz084.
To investigate the incidence of violent crime conviction among Swedish military veterans after deployment to Afghanistan versus non-deployed comparators. The main outcome was first conviction of a violent crime, retrieved from the Swedish National Council for Crime Prevention Register until December 31, 2013.
This was a cohort study of military veterans identified through personnel registers regarding deployment to Afghanistan between 2002 and 2013 (n = 5894). To each military veteran, up to five non-deployed comparators identified via the Military Service Conscription Register were matched by age, sex, conscription year, cognitive ability, psychological assessment, self-reported mental health, body mass index, antidepressants/anxiolytics prescriptions and self-harm (fully matched comparators; n = 28 895). Multivariable adjustment was made for substance abuse and previous health care visits with psychiatric diagnoses. An additional comparator group matched only for age, sex and conscription year was also used (age-sex-matched comparators; n = 29 410).
During 21 898 person-years of follow-up (median = 3.6 years) there were 26 events among deployed military veterans compared with 98 in non-deployed fully matched comparators [12 vs 9 per 10 000 person-years, adjusted hazard ratio (aHR) 1.36; 95% confidence interval (CI) 0.88-2.10]. Among non-deployed age-sex-matched comparators there were 170 violent crime convictions (16 per 10 000 person-years; aHR 0.85; 95% CI 0.56-1.29). Factors associated with greater risk of violent crime convictions were younger age, lower scores on cognitive ability tests and psychological assessment, and convictions preceding deployment.
The violent crime conviction rate after returning from military deployment to Afghanistan was not different compared with non-deployed comparators in individuals without history of violent crime convictions.
调查瑞典军事退伍军人在部署到阿富汗后与未部署的对照组相比，暴力犯罪定罪的发生率。主要结果是从瑞典国家预防犯罪理事会的登记册中检索到的第一次暴力犯罪定罪，截止到 2013 年 12 月 31 日。
这是一项对 2002 年至 2013 年期间被部署到阿富汗的军事退伍军人进行的队列研究（n=5894）。通过兵役应征登记册，为每位退伍军人匹配了多达五名未被部署的对照组，按年龄、性别、应征年份、认知能力、心理评估、自我报告的心理健康状况、体重指数、抗抑郁药/抗焦虑药处方和自残情况进行匹配（完全匹配的对照组；n=28895）。对物质滥用和之前有精神科诊断的医疗保健就诊进行了多变量调整。还使用了仅按年龄、性别和应征年份匹配的对照组（年龄-性别匹配的对照组；n=29410）。
在 21898 人年的随访期间（中位数=3.6 年），与未部署的完全匹配对照组相比，部署的退伍军人中有 26 人发生了暴力犯罪事件（12 例/10000 人年，调整后的危险比[aHR]1.36；95%置信区间[95%CI]0.88-2.10）。在未部署的年龄-性别匹配的对照组中，有 170 人被判犯有暴力犯罪（16 例/10000 人年；aHR 0.85；95%CI 0.56-1.29）。与暴力犯罪定罪风险增加相关的因素是年龄较小、认知能力测试和心理评估得分较低，以及在部署前有定罪记录。
在没有暴力犯罪定罪史的个体中，从阿富汗军事部署返回后的暴力犯罪定罪率与未部署的对照组没有差异。
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