Table 4

ORsa and 95% CIs for prostate cancer in relation to histories of weight and BMI at four time points in life, Shanghai, China

QuartilesbPtrend
1234
Weight (kg)c
20–29 yr1.001.06(0.67–1.69)1.11(0.69–1.80)1.04(0.65–1.67)0.87
40–49 yr1.001.08(0.63–1.83)0.96(0.60–1.53)1.07(0.65–1.77)0.92
60–69 yr1.000.92(0.52–1.62)1.24(0.77–2.00)1.51(0.92–2.48)0.04
In 19881.001.05(0.61–1.79)1.08(0.68–1.71)1.26(0.78–2.03)0.78
BMI (kg/m2)d
20–29 yr1.002.11(1.28–3.46)1.51(0.90–2.53)1.59(0.95–2.66)0.30
40–49 yr1.001.07(0.67–1.37)1.20(0.75–1.91)1.14(0.70–1.84)0.51
60–69 yr1.001.24(0.77–2.00)1.36(0.84–2.20)1.28(0.79–2.06)0.31
In 19881.001.07(0.67–1.70)1.20(0.75–1.91)1.15(0.73–1.83)0.48
  • a Adjusted for age, education, marital status, and total calories.

  • b Based on the distribution among controls. Numbers in parentheses, 95% CI.

  • c Self-reports of weight in kg. Cutoffs for quartile were: 20–29 years: <52, 52–60, 61–65, >65; 40–49 years: <55, 55–60, 61–66, >66; 60–69 years: <55, 55–60, 61–66, >66; in 1988: <55, 56–60, 61–68, >68.

  • d Self-reports of BMI. Cutoffs for quartile were: 20–29 years: <18.59, 18.60–20.20, 20.21–21.97,> 21.97; 40–49 years: <19.82, 19.83–21.48, 21.49–23.51, >23.51; 60–69 years: <19.82, 19.82–21.97, 21.98–24.17, >24.17; in 1988:<19.82, 19.82–21.80, 21.81–24.03, >24.03.