Table 2. Poisson Regression – Likelihood of Late Treatment.

Poisson regression estimates for likelihood of treatment > 6 weeks (n=112,041); women from 1,081 National Cancer Data Base-reporting hospitals diagnosed between 2003 and 2011.

IRR = Incident Rate Ratio

95% CI = 95% Confidence Interval

Late Treatment	IRR (CI 95%)	p value
Age
< 40 yo	1.07 (1.01–1.13)	0.014
40–49	0.86 (0.83–0.89)	<0.001
50–59	0.87 (0.84–0.90)	<0.001
60–69	0.92 (0.90–0.94)	<0.001
> 70 yo	Reference
Race/Ethnicity
Non-Hispanic White	Reference
Non-Hispanic Black	1.35 (1.28–1.42)	<0.001
Hispanic	1.31 (1.20–1.43)	<0.001
Asian	1.15 (1.01–1.30)	0.029
Other/Unknown	1.05 (0.97–1.15)	0.229
Insurance Status
Private Insurance	Reference
Medicaid/Uninsured	1.43 (1.37–1.50)	<0.001
Income
Lowest quartile	0.95 (0.87–1.05)	0.347
Second quartile	0.93 (0.86–1.01)	0.067
Third quartile	0.95 (0.89–1.0)	0.046
Fourth quartile	Reference
Unknown		0.592
Education
Lowest quartile	1.28 (1.17–1.40)	<0.001
Second quartile	1.21(1.14–1.28)	<0.001
Third quartile	1.14 (1.09–1.19)	<0.001
Fourth quartile	Reference
Unknown	0.75 (0.20–2.87)	0.677
CoMorbidity
Charlson-Deyo Score 0	Reference
Charlson-Deyo Score 1	1.14 (1.10–1.18)	<0.001
Charlson-Deyo Score 2	1.36 (1.29–1.42)	<0.001
AJCC Stage
Stage 0	1.10 (0.90–1.36)	0.357
Stage 1	1.21(1.04–1.41)	0.012
Stage 2	1.36 (1.16–1.59)	<0.001
Stage 3	1.16 (1.00–1.34)	0.045
Grade
1	Reference
2	0.93 (0.90–0.96)	<0.001
3	0.82 (1.01–1.11)	<0.001
Unknown	1.00 (0.94–1.06)	0.914
Nodes
Negative	Reference
Positive	1.06 (1.01–1.11)	0.020
Not done	1.14 (1.10–1.19)	<0.001
Unknown	1.04 (0.83–1.29)	0.754
Year of Treatment
2003	Reference
2004–2006	1.06 (1.01–1.12)	0.013
2007–2009	1.28 (1.21–1.35)	<0.001
2010–2011	1.33 (1.25–1.41)	<0.001
Type of Endometrial Cancer
Type I	1.08 (1.03–1.13)	0.002
Type II	Reference