Table 3. Hazard ratios (HR) and 95% confidence intervals (95% CI) ) for all cancer and specific cancers by baseline or updated mean HbA1c at Cox regression, in people with and type 2 diabetes followed for 12 years from 1997–99 to 2009.
Baseline HbA1c | Baseline HbA1c (mmol/mol) | Updated mean HbA1c (mmol/mol) | |||||||
Per 1% | ≤58 | >58 | ≤58 | >58 | |||||
increase | Model 1 | Model 2 | Model 3 | Model 1 | Model 2 | Model 3 | |||
HR (95% CI) | HR (95% CI) | HR (95% CI) | |||||||
All cancer | 1.01(0.98–1.04) | Ref | 0.99(0.92–1.06) | 1.02(0.95–1.10) | 1.02(0.95–1.09) | Ref | 1.01(0.95–1.08) | 1.04(0.97–1.12) | 1.03(0.96–1.10) |
Gastrointestinalcancer | 1.00(0.94–1.06) | Ref | 0.98(0.86–1.12) | 1.03(0.89–1.20) | 1.02(0.88–1.18) | Ref | 1.02(0.89–1.17) | 1.12(0.97–1.29) | 1.09(0.94–1.26) |
Kidney andurinary cancer | 1.00(0.94–1.06) | Ref | 0.86(0.56–1.32) | 0.86(0.55–1.36) | 0.87(0.55–1.37) | Ref | 0.71(0.46–1.09) | 0.70(0.44–1.10) | 0.70(0.44–1.10) |
Respiratorycancer | 1.00(0.85–1.19) | Ref | 0.87(0.57–1.32) | 0.83(0.53–1.31) | 0.84(0.53–1.32) | Ref | 0.99(0.65–1.52) | 1.00(0.64–1.57) | 1.00(0.63–1.56) |
Female genitalcancer | 1.00(0.89–1.12) | Ref | 1.06(0.79–1.41) | 1.03(0.75–1.41) | 1.06(0.77–1.46) | Ref | 1.17(0.88–1.57) | 1.18(0.86–1.61) | 1.22(0.89–1.68) |
Breast cancer | 1.01(0.92–1.10) | Ref | 1.08(0.87–1.36) | 1.08(0.85–1.38) | 1.09(0.86–1.39) | Ref | 1.10(0.88–1.38) | 1.12(0.88–1.43) | 1.12(0.88–1.43) |
Prostate cancer | 1.00(0.94–1.06) | Ref | 0.97(0.84–1.12) | 1.04(0.89–1.21) | 1.05(0.90–1.22) | Ref | 0.92(0.80–1.07) | 0.98(0.84–1.14) | 0.96(0.82–1.11) |
Model 1: Crude HR, without adjustment for covariates. Model 2: Adjustment for age, sex, diabetes duration, BMI, smoking, and insulin treatment as covariates. Model 3: Adjusted HR after stratification with a propensity score. Adjustment by stratification with quintiles of a propensity score including covariates as in Model 2.