Longitudinal Relationship Between Pubertal Development at Baseline and FSS at Follow-up 2 to 3 Years Later, Stratified According to Gender

Headache at Follow-upStomach Pain at Follow-upBack Pain at Follow-upOvertiredness or Lack of Energy at Follow-upDizziness at Follow-up
American girls, pubertal status at baseline1.24 (0.94–1.61)1.27 (0.94–1.72)1.50 (1.16–1.93)b1.44 (1.16–1.78)b1.29 (1.02–1.63)b
American boys, pubertal status at baseline1.02 (0.66–1.59)1.23 (0.78–1.93)1.90 (1.28–2.82)b1.15 (0.86–1.53)1.47 (1.05–2.06)b
P value of the interaction effecta.
Dutch girls, pubertal status at baseline1.14 (0.95–1.37)0.91 (0.74–1.10)1.31 (1.07–1.61)b1.29 (1.07–1.55)b1.30 (1.06–1.58)b
Dutch boys, pubertal status at baseline0.96 (0.75–1.23)0.83 (0.61–1.13)1.37 (1.05–1.79)b1.31 (1.00–1.70)b1.11 (0.83–1.49)
P value of the interaction effecta.
  • Data are odds ratio (95% confidence interval).

  • a P value of the interaction effect of gender.

  • b Significant effect.