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Table 1 Study population characteristics and association with celiac disease

From: Early infections are associated with increased risk for celiac disease: an incident case-referent study

  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
  1. a Exposures before six months of age.
  2. b Bivariate conditional logistic regression using matched sets of cases with 1–2 referents.
  3. c Preliminary version of this result has previously been included in book chapters [2225].
  4. d These data has previously been published [9]. The data presented are based on the subset.
  5. of infants included in the current study (see Methods) and is included in the multivariate analyses.