Table 1 Selected characteristics of 1,904 cases and 1,962 controls, PROtEuS, Montreal, Canada

Age in years, mean (SD)

63.5

(6.8)

64.8

(6.9)

<0.01^d*

Ancestry, n (%)

<0.01^e*

 African

125

(6.6)

86

(4.4)

 Asian

24

(1.3)

71

(3.6)

 European

1681

(88.3)

1674

(85.3)

 Other

74

(3.9)

131

(6.7)

Family income in $CAD, n (%)

0.22^e

 <10,000

55

(2.9)

59

(3.0)

 10,000-19,999

162

(8.5)

176

(9.0)

 20,000-29,999

259

(13.6)

245

(12.5)

 30,000-49,999

442

(23.2)

461

(23.5)

 50,000-79,999

422

(22.2)

406

(20.7)

 80,000-100,000

172

(9.0)

165

(8.4)

 >100,000

252

(13.2)

258

(13.1)

 Unknown

140

(7.4)

192

(9.8)

Education, n (%)

0.18^e

 Primary school or less

432

(22.7)

418

(21.3)

 High school

575

(30.2)

570

(29.1)

 College

310

(16.3)

370

(18.9)

 University

587

(30.8)

604

(30.8)

BMI in kg/m ², mean (SD)

26.8

(4.0)

27.2

(4.4)

<0.01^d*

Ever smoker ^a, n (%)

0.46^e

 No

505

(26.5)

501

(25.5)

 Yes

1398

(73.4)

1461

(74.5)

 Unknown

1

(0.1)

0

(0.0)

Ever drinker ^b, n (%)

1697

(89.1)

1738

(88.6)

0.59^e

Reported overall physical activity level at work, n (%)

0.10^e

 Not very active

407

(21.4)

424

(21.6)

 Moderately active

565

(29.7)

639

(32.6)

 Very active

932

(48.9)

899

(45.8)

Reported overall physical activity level during leisure time, n (%)

0.08^e

 Not very active

556

(29.2)

634

(32.3)

 Moderately active

908

(47.7)

931

(47.5)

 Very active

439

(23.1)

396

(20.2)

 Unknown

1

(0.1)

1

(0.1)

Reported overall physical activity level at home, n (%)

0.01^e*

 Not very active

520

(27.3)

592

(30.2)

 Moderately active

945

(49.6)

1001

(51.0)

 Very active

438

(23.0)

369

(18.8)

 Unknown

1

(0.1)

0

(0.0)

Had/have skin cancer ^c, n (%)

62

(3.3)

56

(2.9)

0.47^e

First-degree relative with prostate cancer, n (%)

<0.01^e*

 No

1409

(74.0)

1723

(87.8)

 Yes

445

(23.4)

198

(10.1)

 Unknown

50

(2.6)

41

(2.1)

Timing of last prostate cancer screening, n (%)

<0.01^e*

 Not screened

2

(0.1)

184

(9.4)

 Screened within the last 2 years

1886

(99.1)

1491

(76.0)

 Screened more than 2 years ago

1

(0.1)

234

(11.9)

 Not sure if screened within the last 2 years

15

(0.8)

53

(2.7)

Gleason score, n (%)

 <6/10

15

(0.8)

 6/10

801

(42.1)

 7/10 with primary score of 3

568

(29.8)

 7/10 with primary score of 4

269

(14.1)

 7/10 with unknown primary score

8

(0.4)

 8/10-10/10

243

(12.8)