. Author manuscript; available in PMC: 2010 Apr 24.

Published in final edited form as: Obesity (Silver Spring). 2009 Jan 15;17(4):796–802. doi: 10.1038/oby.2008.610

Table 3.

Hazard ratios for incident cancer and mean time to diagnosis by cancer stage

	Incident cancers				Mean time to cancer diagnosis, years ± s.d.
Cancer stage	Surgery N	Control N	Hazard ratio^a (95% CI)	P value^*	Surgery	Control
0 (In situ)	44	73	0.86 (0.59–1.26)	0.44	9.2 ± 6.5	9.1 ± 5.2
1 (Local)	128	219	0.86 (0.69–1.07)	0.17	8.4 ± 5.2	9.0 ± 5.5
2–5 (Regional)	49	98	0.61 (0.43–0.89)	0.009	9.3 ± 5.2	8.9 ± 5.3
7 (Distant)	28	68	0.61 (0.39–0.96)	0.03	9.5 ± 6.3	9.0 ± 5.6
9 (Unstaged)	5	19	0.40 (0.15–1.09)	0.07	6.2 ± 7.3	8.9 ± 5.1

CI, 95% confidence interval.

Analyses are adjusted for age, sex, BMI.

P values are unadjusted for multiple comparisons.