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Table 2 Multivariate-adjusted HRs for prostate cancer according to BMI and WC

From: Does increased body mass index lead to elevated prostate cancer risk? It depends on waist circumference

 

Event

Person-years

Incidencea

HR (95% confidence interval) b

P value

BMI, kg/m2

  <  18.5

466

322,751

144.38

0.93 (0.85, 1.02)

0.143

 18.5–22.9

7338

4,841,077

151.57

Ref.

 

 23.0–24.9

6775

4,218,668

160.59

1.12 (1.08, 1.16)

< .001

 25.0–29.9

7560

5,039,457

150.01

1.05 (1.03, 1.08)

0.007

  ≥ 30

445

319,345

139.34

0.98 (0.89, 1.08)

0.650

WC, cm

  < 85

3833

7,206,600

142.54

0.91 (0.88, 0.94)

< .001

 85–90

4260

3,744,368

156.98

Ref.

 

 90–95

4363

2,398,016

166.34

0.99 (0.95, 1.03)

0.703

  ≥ 95

716

1,392,314

175.53

0.97 (0.92, 1.02)

0.179

cP for interaction

<  0.05

  1. BMI body mass index, WC waist circumference, HR hazard ratio
  2. aAll rates are expressed as number per 100,000 person-years
  3. bAdjusted for age, diabetes, hypertension, dyslipidemia, smoking status, and alcohol consumption
  4. cP for interaction between BMI and WC