Variable | Complete case analysis | Imputed data | |
---|---|---|---|
Unadjusted HR (95% CI) | Adjusted HR (95% CI) | Adjusted HR (95% CI) | |
Deprivation score five-unit increaseb | 0.83 (0.82 to 0.85) | 0.91 (0.89 to 0.93) | 0.91 (0.90 to 0.93) |
Ethnic group | |||
White/not recorded | 1.00 | 1.00 | 1.00 |
Indian | 0.40 (0.36 to 0.45) | 0.67 (0.59 to 0.75) | 0.67 (0.60 to 0.75) |
Pakistani | 0.29 (0.24 to 0.35) | 0.54 (0.45 to 0.64) | 0.54 (0.46 to 0.65) |
Bangladeshi | 0.16 (0.12 to 0.23) | 0.46 (0.33 to 0.65) | 0.47 (0.33 to 0.66) |
Other Asian | 0.33 (0.29 to 0.40) | 0.59 (0.50 to 0.71) | 0.60 (0.50 to 0.72) |
Black Caribbean | 1.54 (1.44 to 1.65) | 1.56 (1.46 to 1.67) | 1.56 (1.46 to 1.67) |
Black African | 0.80 (0.73 to 0.88) | 1.13 (1.02 to 1.25) | 1.14 (1.04 to 1.26) |
Chinese | 0.50 (0.37 to 0.67) | 0.54 (0.40 to 0.72) | 0.55 (0.41 to 0.73) |
Other ethnic group | 0.74 (0.68 to 0.82) | 1.09 (0.99 to 1.20) | 1.10 (1.00 to 1.21) |
Smoking status | |||
Non-smoker | 1.00 | 1.00 | 1.00 |
Ex-smoker | 1.02 (1.00 to 1.05) | 1.01 (0.98 to 1.03) | 1.00 (0.98 to 1.03) |
Light smoker | 0.86 (0.83 to 0.89) | 0.97 (0.94 to 1.01) | 0.98 (0.95 to 1.02) |
Moderate smoker | 0.77 (0.72 to 0.82) | 0.93 (0.88 to 0.99) | 0.93 (0.88 to 0.99) |
Heavy smoker | 0.74 (0.69 to 0.79) | 0.94 (0.88 to 1.00) | 0.95 (0.90 to 1.01) |
Medical history | |||
Family history of prostate cancerc | 1.47 (1.34 to 1.61) | 1.73 (1.55 to 1.92) | 1.83 (1.66 to 2.02) |
Serious mental Illnessd | 0.52 (0.44 to 0.63) | 0.67 (0.56 to 0.80) | 0.67 (0.57 to 0.79) |
No diabetes | 1.00 | 1.00 | 1.00 |
Type 1 diabetes | 0.35 (0.25 to 0.49) | 0.74 (0.53 to 1.04) | 0.78 (0.58 to 1.05) |
Type 2 diabetes | 0.78 (0.75 to 0.82) | 0.90 (0.86 to 0.95) | 0.90 (0.86 to 0.94) |
↵a Model also includes fractional polynomial terms for age (age−0.5, age−0.5ln[age]) and BMI [BMI −1, BMI −0.5], and PSA (PSA−1, PSA−0.5) with interaction terms between age terms and family history, and between age and PSA terms.
↵b Increasing Townsend scores indicate increasing levels of deprivation.
↵c Interaction with age; HR evaluated at mean age.
↵d Compared with patients without this characteristic. HR = hazard ratio.