Table 3.
Dairy intake and multivariate hazard ratios (HRs) and 95% confidence intervals (CIs) of biochemical and clinical recurrence (N=741) among 3,255 men with prostate cancer.
| Dairy product intake | No. | All men1 | |
|---|---|---|---|
| Total milk, servings | HR | 95% CI | |
| 0-3/month | 128 | 1.00 | |
| >3/month to 4/week | 154 | 0.98 | (0.76-1.27) |
| >4/week to 1/day | 257 | 0.97 | (0.76-1.22) |
| >1/day | 202 | 1.08 | (0.84-1.39) |
| P trend | 0.34 | ||
| Skim to 2% fat milk, servings | |||
| 0-3/month | 164 | 1.00 | |
| >3/month to 4/week | 154 | 1.00 | (0.79-1.28) |
| >4/week to 1/day | 239 | 0.92 | (0.73-1.14) |
| >1/day | 184 | 1.01 | (0.79-1.28) |
| P trend | 0.77 | ||
| Whole milk, servings | |||
| 0-3/month | 670 | 1.00 | |
| >3/month to 4/week | 34 | 1.19 | (0.80-1.78) |
| >4/week | 37 | 1.51 | (1.03-2.20) |
| P trend | 0.03 | ||
| Total dairy, quintiles2, servings | |||
| 1 (0 to 0.9/day) | 146 | 1.00 | |
| 2 (>0.9 to 1.3/day) | 149 | 0.99 | (0.77-1.28) |
| 3 (>1.3 to 1.8/day) | 140 | 0.92 | (0.71-1.19) |
| 4 (>1.8 to 2.9/day) | 139 | 0.96 | (0.73-1.25) |
| 5 (>2.9/day) | 167 | 0.99 | (0.76-1.29) |
| P trend | 0.93 | ||
| Low-fat dairy, quintiles2, servings | |||
| 1 (0 to 0.1/day) | 133 | 1.00 | |
| 2 (>0.1 to 0.6/day) | 144 | 1.22 | (0.94-1.58) |
| 3 (>0.6 to 1.0/day) | 156 | 1.16 | (0.90-1.50) |
| 4 (>1.0 to 1.4/day) | 149 | 1.23 | (0.95-1.59) |
| 5 (>1.4/day) | 159 | 1.11 | (0.86-1.45) |
| P trend | 0.81 | ||
| Full-fat dairy, quintiles2, servings | |||
| 1 (0 to 0.2/day) | 153 | 1.00 | |
| 2 (>0.2 to 0.6/day) | 153 | 1.07 | (0.83-1.37) |
| 3 (>0.6 to 1.0/day) | 147 | 0.92 | (0.72-1.19) |
| 4 (>1.0 to 1.7/day) | 124 | 0.70 | (0.54-0.92) |
| 5 (>1.7/day) | 164 | 1.02 | (0.79-1.32) |
| P trend | 0.66 | ||
1)
Adjusted for age at diagnosis (continuous), total caloric intake (quintiles), smoking status (non-smoker, smoker), BMI (<25, 25-29.9, 30+), exercise in MET-hours/wk (quintiles), tomato sauce intake (<1 serving/wk, 1-1.99 servings/wk, 2- servings/wk), alpha-linolenic acid intake (quintiles), TNM stage (T1, T2, T3a), Gleason score (<7, 7, >7, unknown), and PSA at diagnosis (<10, 10-20, >20, unknown).
2)
Cut points for quintiles of servings/day refer to the cut points for the baseline year, 1986. The cut points for the quintiles vary over time.