Table 5.
Association of timing of supper and sleep interval on risk of breast and prostate cancer by adherence to cancer prevention recommendations (categories of WCRF/AICR score)
| Interval between supper and sleep by adherence to cancer prevention recommendations | Controls for breast cancer N (%) | Breast cancer cases N (%) | OR (95%CI)a | Controls for prostate cancer N (%) | Prostate cancer cases N (%) | OR (95%CI)b | Combined breast and prostate cancer OR (95%CI) |
|---|---|---|---|---|---|---|---|
| WCRF/AICR lowest adherence | |||||||
| 1 hr or less (ref) | 84 (19.6) | 73 (18.3) | 113 (38.7) | 73 (41.0) | |||
| From >1 to ≤2 hr | 164 (38.3) | 183 (45.9) | 1.27 (0.86,1.86) | 108 (37.0) | 63 (35.4) | 0.87 (0.56,1.37) | 1.07 (0.75,1.54) |
| More than 2 hr | 180 (42.1) | 143 (35.8) | 0.87 (0.59,1.28) | 71 (24.3) | 42 (23.6) | 0.95 (0.58,1.58) | 0.90 (0.66,1.22) |
| WCRF/AICR Intermediate | |||||||
| 1 hr or less (ref) | 61 (19.3) | 64 (23.4) | 81 (32.1) | 87 (41.2) | |||
| From >1 to ≤2 hr | 128 (40.5) | 99 (36.1) | 0.70 (0.45,1.10) | 107 (42.5) | 77 (36.5) | 0.63 (0.41,0.98) | 0.67 (0.49,0.91) |
| More than 2 hr | 127 (40.2) | 111 (40.5) | 0.78 (0.50,1.22) | 64 (25.4) | 47 (22.3) | 0.64 (0.38,1.05) | 0.72 (0.51,1.00) |
| WCRF/AICR high adherence | |||||||
| 1 hr or less (ref) | 53 (16.0) | 44 (17.9) | 66 (36.3) | 45 (47.9) | |||
| From >1 to ≤2 hr | 134 (40.5) | 107 (43.5) | 0.90 (0.56,1.46) | 73 (40.1) | 34 (36.2) | 0.68 (0.39,1.22) | 0.81 (0.56,1.17) |
| More than 2 hr | 144 (43.5) | 95 (38.6) | 0.72 (0.45,1.18) | 43 (23.6) | 15 (16.0) | 0.51 (0.25,1.05) | 0.65 (0.44,0.97) |
a
Adjusted for age, educational level, menopausal status and center.
b
Adjusted for age, educational level and center.