Table 2:

Cross-sectional association between suicide of a schoolmate and suicidality outcomes in youth

Group; outcome; suicide exposureOR (95% CI)
UnadjustedPartially adjusted*Fully adjusted*
Ages 12–13 yr
Ideation
 Exposure in past yr5.06 (3.04–8.40)5.09 (3.03–8.57)6.46 (3.56–11.72)
 Exposure > 1 yr ago4.57 (2.87–7.29)4.58 (2.87–7.32)4.08 (2.43–6.86)
 No exposureRefRefRef
Attempt
 Exposure in past yr4.57 (2.39–8.71)4.68 (2.37–9.24)5.93 (2.67–13.20)
 Exposure > 1 yr ago5.80 (3.07–10.97)5.65 (2.98–10.70)5.05 (2.50–10.19)
 No exposureRefRefRef
Ages 14–15 yr
Ideation
 Exposure in past yr2.93 (2.02–4.24)2.78 (1.91–4.04)2.85 (1.85–4.41)
 Exposure > 1 yr ago2.89 (2.01–4.15)2.66 (1.84–3.84)2.35 (1.55–3.54)
 No exposureRefRefRef
Attempt
 Exposure in past yr3.99 (2.46–6.45)3.62 (2.21–5.94)3.41 (1.93–6.04)
 Exposure > 1 yr ago3.88 (2.40–6.27)3.38 (2.07–5.52)2.98 (1.70–5.22)
 No exposureRefRefRef
Ages 16–17 yr
Ideation
 Exposure in past yr2.23 (1.43–3.48)2.21 (1.40–3.47)1.83 (1.04–3.21)
 Exposure > 1 yr ago1.86 (1.18–2.93)1.79 (1.13–2.84)1.97 (1.14–3.41)
 No exposureRefRefRef
Attempt
 Exposure in past yr3.22 (1.62–6.41)3.13 (1.53–6.43)3.26 (1.35–7.89)
 Exposure > 1 yr ago2.33 (1.17–4.61)2.18 (1.08–4.40)2.04 (0.84–4.96)
 No exposureRefRefRef

  • Note: CI = confidence interval, OR = odds ratio, ref = reference.

  • ↵* Partially adjusted models account for sex and socioeconomic status. For ages 14–15 yr and 16–17 yr, the fully adjusted models account for sex, socioeconomic status, previous depression or anxiety, previous monthly drinking episodes and previous drug use (as reported in the previous survey cycle). For ages 12–13 yr, the fully adjusted models account for sex, socioeconomic status and previous depression or anxiety.