TABLE 1

Background Characteristics of the Cohort and Early Infant Feeding

CDExcluded
Yes, n = 324No, n = 81 843n = 24 750
Mean age, y (median, range)6.8 (7.0, 2–12)5.9 (6.0, 2–12)5.8 (6.0, 2–12)
Girl, n (%)201 (62.0)39 882 (48.7)12 053 (48.7)
Maternal CD, n (%)13 (4.0)325 (0.40)82 (0.47)
 Missing, n007297
Gluten introduction, n (%)
 ≤4 mo28 (8.6)6580 (8.0)NA
 5–6 mo137 (42.3)37 107 (45.3)NA
 >6 mo159 (49.1)38 156 (46.6)NA
Breastfeeding, n (%)
 <3 mo36 (11.1)10 932 (13.4)NA
 3–5 mo23 (7.1)6990 (8.5)NA
 ≥6 mo265 (81.8)63 921 (78.1)NA
  • NA, not available. Data represent 324 children with CD, 81 843 cohort controls, and 24 750 excluded from analysis.