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Table 3 Associations between self-perceived weight status at baseline and underweight 3 years later (Japan; 2002–2007) (n=1431)

From: Association between distorted body image and changes in weight status among normal weight preadolescents in Japan: a population-based cohort study

  Total Underweight Crude Adjusteda
  N n (%) OR (95 % CI) OR (95 % CI)
Self-perceived weight status     
 Boys     
  Thin 207 17 (8.2) 5.15 (2.18–12.12) 5.51 (2.20–13.80)
  Normal 480 8 (1.7) 1.00 1.00
  Heavy 36 0 (0.0) - -
 Girls     
  Thin 151 18 (11.9) 3.47 (1.75–6.85) 2.93 (1.40–6.11)
  Normal 498 18 (3.6) 1.00 1.00
  Heavy 59 0 (0.0) - -
  1. OR odds ratio, 95 % CI 95 % confidence interval
  2. aAdjusted for age, exercise, eating speed, snacking after dinner, and hours of sleep at baseline