Table 1

Study population characteristics and association with celiac disease
Descriptive
Exposuresa Cases Referents BIVARIATE ANALYSES P-VALUE
[n=373] [n=581] OR (95% CI) b
n (%) n (%)
Siblings in preschool age
 Yes 215 (58) 333 (57) 1.0
 No 158 (42) 248 (43) 0.99 (0.74-1.3) 0.923
Family socioeconomic status
 High-Medium 193 (52) 358 (62) 1.0
 Low 180 (48) 223 (38) 1.5 (1.2-1.9)c 0.002
Breastfeeding at introduction of glutend
 Discontinued 202 (54) 192 (33) 1.0
 Continued same month 88 (24) 147 (25) 0.55 (0.39-0.78) 0.001
 Continued beyond 83 (22) 242 (42) 0.32 (0.23-0.45) <0.001
Amount of flour per day two weeks after introductiond
 Small-Medium 189 (51) 373 (64) 1.0
 Large 184 (49) 208 (36) 1.9 (1.4-2.6) <0.001

a Exposures before six months of age.

b Bivariate conditional logistic regression using matched sets of cases with 1–2 referents.

c Preliminary version of this result has previously been included in book chapters [22-25].

d These data has previously been published [9]. The data presented are based on the subset.

of infants included in the current study (see Methods) and is included in the multivariate analyses.

Myléus et al.

Myléus et al. BMC Pediatrics 2012 12:194   doi:10.1186/1471-2431-12-194

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