Table 3.

Hazard Ratios and Corresponding Confidence Intervals for Any Thyroid Cancer in Subgroups of Patients with Celiac Disease Diagnosed in Sweden in 1969–2008

Subgroup	Observed events	Expected events	HR [CI]	Absolute risk/ 100,000 PYAR
Sex
Males	0	2	n.e.	—
Females	7	10	0.7 [0.3–1.5]	3.4
Age (years)
<24	2	3	0.8 [0.2–2.3]	1.2
>25	5	9	0.6 [0.2–1.4]	3.0
Calendar period
Pre 1999	5	8	0.6 [0.2–1.5]	2.0
2000 onward	2	2	1.1 [0.2–4.8]	2.5

Reference is general population comparator cohort. Estimates from the Cox proportional hazards model internally stratified for age, sex, county, and calendar period.

n.e., not estimated.