TABLE 2

Multivariate Cox proportional hazards model for developing type 1 diabetes

Univariate HRPMultivariate HRP
Cesarean section2.5 (1.4–4.3)0.001*2.8 (1.5–5.0)0.001
Maternal type 1 diabetes0.9 (0.5–1.6)0.80.8 (0.4–1.4)0.5
Nonsingleton birthNANA*
Premature birth1.2 (0.6–2.5)0.71.2 (0.5–2.6)0.7
Firstborn child1.0 (0.6–1.7)0.91.2 (0.6–2.1)0.6
Breast feeding <3 months0.9 (0.5–1.6)0.70.8 (0.4–1.5)0.5
Birth wt <3,450 g1.4 (0.8–2.5)0.21.5 (0.8–2.6)0.2
  • *Bonferroni-corrected P = 0.007.

  • †Not applicable, since there were no diabetes cases in the 37 nonsingleton birth children.