Table 3.

Baseline characteristics of participants

Controls (maximum, n = 12,005)Cases (maximum, n = 1,806)
CharacteristicsnMean (SD) or %nMean (SD) or %
Age, y12,00561.6 (5.0)1,80662.0 (5.0)
Body mass index (kg/m2)11,90127.4 (3.9)1,78727.1 (3.6)
Total energy intake (kcal/day)12,0052408 (681)1,8062398 (679)
Ethnicity
 White11,84398.71,77598.3
 Others880.7211.2
 Missing740.6100.5
Family history of prostate cancer
 Yes6085.11397.7
 No10,17984.81,47081.4
 Missing1,21810.119710.9
Diabetes
 Yes8847.41116.1
 No10,44887.01,58087.5
 Missing6735.61156.4
Occupational class
 Managerial5,84348.785147.1
 Intermediate1,81415.127215.1
 Working4,15234.665636.3
 Missing1961.6271.5
Smoking status
 Never4,06833.968638.0
 Past6,29652.488048.7
 Current1,58513.223913.2
 Missing560.510.1
Dietary supplement intake
 Yes6,02750.293851.9
 No5,74047.882945.9
 Missing2382.0392.2
Stage
 Localized1,61289.3
 Locally advanced18410.2
 Missing100.5
Gleason grade
 Low (2–6)1,20466.7
 High (7–10)59633.0
 Missing60.3