Table 3. Baseline characteristics of participants.
Characteristics | Controls (maximum n=12,005) |
Cases ( maximum n=1,806) |
||
---|---|---|---|---|
n | Mean (SD) or % | n | Mean (SD) or % | |
Age (years) | 12,005 | 61.6 (5.0) | 1,806 | 62.0 (5.0) |
Body mass index (kg/m2) | 11,901 | 27.4 (3.9) | 1,787 | 27.1 (3.6) |
Total energy intake (kcal/d) | 12,005 | 2408 (681) | 1,806 | 2398 (679) |
Ethnicity | ||||
White | 11,843 | 98.7 | 1,775 | 98.3 |
Others | 88 | 0.7 | 21 | 1.2 |
Missing | 74 | 0.6 | 10 | 0.5 |
Family history of prostate cancer | ||||
Yes | 608 | 5.1 | 139 | 7.7 |
No | 10,179 | 84.8 | 1,470 | 81.4 |
Missing | 1,218 | 10.1 | 197 | 10.9 |
Diabetes | ||||
Yes | 884 | 7.4 | 111 | 6.1 |
No | 10,448 | 87.0 | 1,580 | 87.5 |
Missing | 673 | 5.6 | 115 | 6.4 |
Occupational class | ||||
Managerial | 5,843 | 48.7 | 851 | 47.1 |
Intermediate | 1,814 | 15.1 | 272 | 15.1 |
Working | 4,152 | 34.6 | 656 | 36.3 |
Missing | 196 | 1.6 | 27 | 1.5 |
Smoking status | ||||
Never | 4,068 | 33.9 | 686 | 38.0 |
Past | 6,296 | 52.4 | 880 | 48.7 |
Current | 1,585 | 13.2 | 239 | 13.2 |
Missing | 56 | 0.5 | 1 | 0.1 |
Dietary supplement intake | ||||
Yes | 6,027 | 50.2 | 938 | 51.9 |
No | 5,740 | 47.8 | 829 | 45.9 |
Missing | 238 | 2.0 | 39 | 2.2 |
Stage | ||||
Localised | - | - | 1,612 | 89.3 |
Locally advanced | - | - | 184 | 10.2 |
Missing | - | - | 10 | 0.5 |
Gleason grade | ||||
Low (2-6) | - | - | 1,204 | 66.7 |
High (7-10) | - | - | 596 | 33.0 |
Missing | - | - | 6 | 0.3 |