Table 2

Distribution of summer (March–August) versus winter (September–February) births in coeliac disease (CD) patients and controls, stratified by age of diagnosis

Summer birthsWinter birthsOR (95% CI)p Value
Age <2
 CD patients2654 (58)1935 (42)1.17 (1.10 to 1.26)<0.0001
 Controls12314 (54)10543 (46)
Age 2–18
 CD patients3633 (54)3,086 (46)1.02 (0.97 to 1.08)0.4082
 Controls17945 (54)15585 (46)
Age ≥18
 CD patients9455 (53)8333 (47)1.04 (1.01 to 1.07)0.0155
 Controls45971 (52)42164 (48)