Table 1.
Age-adjusted1 means and proportions among 3,918 men with prostate cancer by the 1st, 3rd, and 5th quintile of total dairy, low-fat dairy, and full-fat dairy intake2 at start of follow-up.
| Total dairy intake |
Low-fat dairy intake |
Full-fat dairy |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| Characteristic | Q1 | Q3 | Q5 | Q1 | Q3 | Q5 | Q1 | Q3 | Q5 |
| Median intake, serving/day | 0.6 | 1.7 | 3.9 | 0.1 | 1.1 | 3.0 | 0.1 | 0.9 | 2.6 |
| Age at diagnosis, years | 68.3 | 69.1 | 69.8 | 68.7 | 68.6 | 69.8 | 69.4 | 69.2 | 69.3 |
| Caucasian, % | 93.9 | 97.2 | 98.0 | 94.0 | 96.4 | 98.4 | 94.6 | 96.6 | 97.3 |
| Family history of prostate cancer, % | 9.9 | 10.1 | 11.0 | 9.6 | 11.3 | 10.4 | 10.6 | 10.6 | 11.7 |
| TNM stage, % | |||||||||
| T1 | 54.9 | 58.1 | 56.6 | 55.0 | 56.0 | 56.9 | 55.9 | 54.8 | 55.1 |
| T2 | 40.9 | 37.0 | 39.3 | 41.1 | 39.1 | 38.8 | 39.5 | 41.5 | 41.1 |
| T3a | 4.3 | 4.9 | 4.2 | 3.9 | 4.8 | 4.2 | 4.6 | 3.7 | 3.8 |
| Gleason score, % | |||||||||
| 2-6 | 64.9 | 67.5 | 63.9 | 65.6 | 66.8 | 63.3 | 66.1 | 65.8 | 67.4 |
| 7 | 27.1 | 24.7 | 26.2 | 26.2 | 24.1 | 27.1 | 25.6 | 25.2 | 24.7 |
| 8-10 | 8.0 | 7.8 | 9.9 | 8.2 | 9.1 | 9.6 | 8.4 | 9.0 | 7.8 |
| PSA at diagnosis, % | |||||||||
| <10 | 71.8 | 72.5 | 68.7 | 69.6 | 71.3 | 70.1 | 71.8 | 71.2 | 67.7 |
| 10-20 | 19.8 | 18.8 | 21.5 | 20.6 | 18.8 | 19.7 | 19.0 | 20.2 | 22.7 |
| >20 | 8.5 | 8.7 | 9.8 | 9.7 | 9.8 | 10.2 | 9.2 | 8.6 | 9.6 |
| Treatment, % | |||||||||
| Radical prostatectomy | 48.3 | 51.6 | 49.3 | 46.4 | 50.1 | 50.0 | 49.9 | 48.8 | 48.5 |
| Radiation therapy | 36.7 | 33.1 | 36.0 | 37.4 | 35.8 | 36.1 | 35.1 | 38.0 | 35.4 |
| Hormonal treatment | 5.2 | 5.5 | 6.2 | 5.7 | 5.3 | 5.5 | 5.7 | 5.1 | 5.8 |
| Active surveillance | 7.2 | 8.1 | 7.0 | 8.0 | 7.4 | 7.0 | 7.8 | 6.3 | 8.3 |
| Other | 2.7 | 1.7 | 1.4 | 2.5 | 1.4 | 1.5 | 1.6 | 1.8 | 2.0 |
| BMI, kg/m2 | 25.6 | 25.7 | 26.0 | 25.9 | 25.6 | 25.8 | 25.2 | 25.8 | 26.2 |
| Current smokers, % | 4.7 | 4.0 | 6.1 | 5.6 | 4.2 | 4.7 | 3.0 | 5.4 | 5.6 |
| Physical activity, MET-hours/week | 34.8 | 33.9 | 37.3 | 33.5 | 34.7 | 36.3 | 36.2 | 34.8 | 36.5 |
| Tomato sauce intake, servings/week | 1.0 | 1.1 | 1.0 | 1.0 | 1.1 | 1.0 | 1.0 | 1.1 | 1.1 |
| Alpha-linolenic acid intake, grams/day | 1.2 | 1.2 | 1.1 | 1.2 | 1.1 | 1.1 | 1.1 | 1.1 | 1.2 |
| PSA screening, %3 | 95.1 | 94.4 | 95.5 | 93.1 | 96.8 | 95.9 | 97.3 | 94.1 | 94.9 |
1
Adjusted for age at prostate cancer diagnosis (<60, 60-64, 65-69, 70-74, 75+).
2
Quintiles of servings/day.
3
Ever had a PSA test for routine screening; restricted to men diagnosed after 1992.