Table 3—

Multivariate survival analysis examining maternal vitamin D intake via food during pregnancy and risk of IA and persistent IA

Risk factors*IA adjusted HR (95% CI)Wald χ2PPersistent IA adjusted HR (95% CI)Wald χ2P
n1611
Vitamin D intake via food (IU)0.37 (0.17–0.78)0.0200.58 (0.27–1.28)0.205
First-degree type 1 diabetic relative5.15 (1.45–18.28)0.0216.74 (1.62–28.03)0.031
HLA-DR 3/4, DQ8 genotype9.79 (1.69–56.83)0.0299.14 (1.50–55.85)0.054
GDM7.78 (1.83–33.03)0.0112.05 (0.22–19.02)0.528
Child’s ethnicity (% non-Hispanic Caucasian)6.97 (0.88–55.46)0.088Not calculableNA
  • * All variables entered into model simultaneously;

  • HR represents risk for a 155.6 IU SD difference in intake;

  • all affected were non-Hispanic Caucasian.