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Table 4 Multivariate attrition analyses predicting those who were lost to follow-up at 30 year

From: Gender differences in the prospective association between maternal alcohol consumption trajectories and young adult offspring’s problem gambling at 30 years

Predicting variablesa Odds of being lost to follow-up
Unadjusted Adjustedb
OR (95 % CI) OR (95 % CI)
Gender
 Male (Ref.) 1.0 1.0
 Female 0.4 (0.4–0.5) 0.5 (0.4–0.5)
Marital status
 Never married (Ref.) 1.0 1.0
 Cohabitation 0.9 (0.8–1.1) 1.0 (0.8–1.2)
 Married 0.8 (0.5–1.1) 0.9 (0.6–1.3)
 Sep-Div-Wid 2.2 (0.9–5.4) 2.4 (0.9–6.5)
Educational level
 Lower secondary school (Ref.) 1.0 1.0
 Secondary school 0.4 (0.3–0.5) 0.4 (0.4–0.5)
 College-TAFE/Uni 0.4 (0.3–0.5) 0.4 (0.4–0.5)
Income
 $160+ per week (Ref.) 1.0 1.0
 $0 to $159 per week 0.7 (0.6–0.8) 0.7 (0.6–0.8)
Impulsive behaviours
 Nomal (Ref.) 1.0 1.0
 High 0.9 (0.7–1.2) 0.9 (0.7–1.1)
Maternal alcohol consumption trajectories
 Abstainers (Ref.) 1.0 1.0
 Low-stable drinkers 0.8 (0.7–.0) 0.8 (0.7–1.0)
 Moderate-escalating drinkers 0.8 (0. 6–0.9) 0.8 (0.6–1.0)
  1. Italic = p < 0.05
  2. aAssessed at 21 year follow-up
  3. bModel was adjusted for all factors listed