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. Author manuscript; available in PMC: 2012 Apr 1.
Published in final edited form as: Cancer. 2010 Nov 8;117(7):1552–1556. doi: 10.1002/cncr.25641

Table 2.

Odds Ratios and 95% Confidence Intervals for Bladder Cancer and Diabetes

Diabetes Controls N=263 Cases N=331 Crude Odds Ratio Adjusted Odds Ratio* Adjusted Odds Ratio**
Variable N (%) N (%) (95%CI) (95%CI) (95%CI)
History of Diabetes
No 90% (238) 79% (255) (reference) (reference) (reference)
Yes 10% (25) 21% (66) 2.4 (1.4, 3.9) 2.5 (1.4, 4.2) 2.2 (1.3, 3.8)

Duration of Diabetes (yrs) ***
1 – 4 4% (10) 8% (27) 2.4 (1.1, 5.2) 2.4 (1.1, 5.4) 2.1 (0.9, 4.8)
5 – 15 4% (10) 7% (23) 2.1 (1.0, 4.5) 2.2 (1.0, 4.9) 2.0 (0.9, 4.6)
16+ 2% (4) 5% (16) 3.6 (1.2, 11.1) 3.8 (1.2, 12.2) 3.6 (1.1, 11.2)
P(Trend)=0.0008 P(Trend)=0.0009 P(Trend)=0.003

Therapy ***
Diet Only 3% (8) 3% (11) 1.2 (0.5, 3.2) 1.2 (0.4, 3.2) 1.0 (0.4, 2.8)
Oral Only 4% (10) 11% (37) 3.3 (1.7, 6.9) 3.6 (1.7, 7.9) 3.3 (1.5, 7.1)
Insulin 3% (7) 5% (17) 2.2 (0.9, 5.5) 2.2 (0.9, 5.7) 2.2 (0.8, 5.6)
*

Adjusted for age, gender, and smoking

**

Adjusted for age, gender, smoking, BMI and UTI

***

Referent group for odds ratios is subjects without diabetes