Total and cause-specific MR and excess MR among the three groups of siblings.

*649 accidents, 618 suicides, 69 homicides, 45 injuries undetermined whether accidentally or purposely inflicted
**6 suicides, 9 accidents,
***3 suicides, 3 accidents, 1 injury undetermined whether accidentally or purposely inflicted
†Because there were no deaths from unknown causes in the HIV/HCV group, we were not able to calculate 95% confidence intervals (CI).

* 649起意外事故、618起自杀事件、69起凶杀案，另有45起伤情无法判定为意外或故意伤害
** 6起自杀事件、9起意外事故
*** 3起自杀事件、3起意外事故、1起伤情无法判定为意外或故意伤害
† 由于人类免疫缺陷病毒/丙型肝炎病毒（HIV/HCV）组中无未知原因死亡病例，故无法计算95%置信区间（CI）。