Table 1.

Characteristics of patients with celiac disease and matched controls.

	Celiac Disease (n=28,339)	Controls (n=141,588)
Average age at study entry (years), Mean (SD)	31.3 (25.4)	31.4 (25.4)
Age (years), no. patients (%)
0–19	11,777 (42)	58,554 (42)
20–39	5,267 (19)	26,233 (19)
40–59	6,332 (22)	31,801 (22)
60–79	4,419 (16)	22,265 (16)
≥80	544 (2)	2,735 (2)
Sex, no. patients (%)
Male	10,679 (38)	53,450 (38)
Female	17,660 (62)	88,138 (62)
Calendar period of study entry, no. patients (%)
≤1989	3,681 (13)	18,670 (13)
1990–1999	11,758 (41)	58,685 (41)
≥2000	12,900 (46)	64,233 (46)
Follow-up time (years), mean/median	11.4/10.1	11.5/10.2
Incident C. difficile infection, no. patients (%)	136 (0.48)	357 (0.25)