Table 5. Hazard ratios (95% confidence intervals) of incident endometrial cancer according to occupational activity.

	Activity at occupation			P for trend
	Mainly sitting	Mainly standing	Moving
Number at risk	6,726	4,648	7,183
Person years	98,570	59,414	96,748
Number of cases	24	12	11
Model 1a	1	0.78 (0.39–1.57)	0.45 (0.22–0.92)	0.028
Model 2b	1	0.79 (0.39–1.59)	0.46 (0.22–0.97)	0.042

^aModel 1 adjusted for age.

^bModel 2 adjusted further for baseline body mass index, weight change since age 20, history of diabetes, history of hypertension, age at menarche, menstrual presence, parity, smoking status, alcohol consumption, hours of physical exercise, walking, and television viewing.