Fett M J, Adena M A, Cobbin D M, Dunn M
Am J Epidemiol. 1987 May;125(5):869-77. doi: 10.1093/oxfordjournals.aje.a114603.
A retrospective cohort study of mortality was conducted to assess whether Army service of young Australian men in the Vietnam conflict influenced the subsequent risk of premature death. Analysis related to all National Servicemen (generally conscripts in the Australian Army) who enlisted during the conflict and served in the Army for at least 12 months. Of these veterans, 19,205 served in Vietnam, while 25,677 served only in Australia. All men were traced from the end of their national service engagement (between 1966 and 1976) until January, 1, 1982. For both groups, death rates were statistically significantly lower than expected for Australian males of the same age. Overall mortality of Vietnam veterans was 1.3 times that of non-Vietnam veterans (95% confidence interval (Cl) = 1.1-1.5). After adjustment for the confounding effects of Army corps grouping, Vietnam veteran mortality was 1.2 times that of non-Vietnam veterans (95% Cl = 1.0-1.4). No other variable examined was confounding. The excess of deaths among Vietnam veterans relative to the veterans not serving in Vietnam was largely confined to The Royal Australian Engineers. Among members of this corps, the relative mortality rate was 2.5 (95% Cl = 1.4-4).
开展了一项关于死亡率的回顾性队列研究，以评估参加越南冲突的澳大利亚年轻男性的军队服役经历是否会影响其随后过早死亡的风险。分析对象为所有在冲突期间入伍并在军队服役至少12个月的义务兵（澳大利亚军队中的普遍征兵对象）。在这些退伍军人中，19205人曾在越南服役，而25677人仅在澳大利亚服役。所有男性均从其义务兵役结束时（1966年至1976年之间）开始追踪，直至1982年1月1日。对于这两组人而言，死亡率在统计学上显著低于同年龄澳大利亚男性的预期死亡率。越南退伍军人的总体死亡率是非越南退伍军人的1.3倍（95%置信区间（Cl）=1.1 - 1.5）。在对军团分组的混杂效应进行调整后，越南退伍军人的死亡率是非越南退伍军人的1.2倍（95% Cl = 1.0 - 1.4）。所考察的其他变量均无混杂作用。与未在越南服役的退伍军人相比，越南退伍军人中死亡人数过多的情况主要局限于澳大利亚皇家工兵部队。在该部队成员中，相对死亡率为2.5（95% Cl = 1.4 - 4）。
