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Table 1 Baseline characteristics of study participants by incident overall cancer

From: C-reactive protein and cancer risk: a pan-cancer study of prospective cohort and Mendelian randomization analysis

 

Overall (N=420,964)

No cancer (N=385,985)

Incident cancer (N=34,979)

CRP at baseline,(mg/L)

2.4 ± 3.3

2.4 ± 3.3

2.7 ± 3.6

Age at baseline,(years)

56.2 ± 8.1

55.9 ± 8.1

60.2 ± 6.8

Male,n(%)

197,223 (46.9)

178,749 (46.3)

18,474 (52.8)

Ethnic,n(%)

 White

395,650 (94.0)

361,760 (93.7)

33,890 (96.9)

 Asian

9994 (2.4)

9632 (2.5)

362 (1.0)

 African

6829 (1.6)

6557 (1.7)

272 (0.8)

 Mixed background

2551 (0.6)

2427 (0.6)

124 (0.4)

 Unknown

5940 (1.4)

5609 (1.5)

331 (0.9)

Education,n(%)

 No degree

278,328 (66.1)

254,225 (65.9)

24,103 (68.9)

 Degree

137,610 (32.7)

127,166 (33.0)

10,444 (29.9)

 Unknown

5026 (1.2)

4594 (1.1)

432 (1.2)

Townsend deprivation index

−1.3 ± 3.1

−1.3 ± 3.1

−1.5 ± 3.0

Standing height, (cm)

168.6 ± 9.3

168.6 ± 9.3

169.3 ± 9.1

BMI, (kg/m2)

27.4 ± 4.8

27.4 ± 4.8

27.6 ± 4.7

Smoking status,n(%)

 Never

230,940 (54.9)

213,858 (55.4)

17,082 (48.8)

 Previous

143,521 (34.1)

129,772 (33.6)

13,749 (39.3)

 Current

44,385 (10.5)

40,431 (10.5)

3954 (11.3)

 Unknown

2118 (0.5)

1924 (0.5)

194 (0.6)

Alcohol use,n(%)

 Never

18,583 (4.4)

17,311 (4.5)

1272 (3.6)

 Previous

14,892 (3.5)

13,547 (3.5)

1345 (3.9)

 Current

386,411 (91.8)

354,112 (91.7)

32,299 (92.3)

 Unknown

1078 (0.3)

1015 (0.3)

63 (0.2)

Physical activity (MET/week),n(%)

 <600

63,447 (15.0)

58,199 (15.1)

5248 (15.0)

 600–3000

252,403 (60.0)

231,494 (60.0)

20,909 (59.8)

 ≥3000

105,114 (25.0)

96,292 (24.9)

8822 (25.2)

Having family cancer history,n(%)

145,198 (34.5)

131,509 (34.1)

13,689 (39.1)

Menopausal,n(%)a

 No

55,655 (24.9)

53,240 (25.7)

2,415 (14.6)

 Yes

133,190 (59.5)

121,674 (58.7)

11,516 (69.8)

 Not sure

34,209 (15.3)

31,665 (15.3)

2544 (15.4)

 Unknown

687 (0.3)

657 (0.3)

30 (0.2)

Oral contraceptive use,n(%)a

 Never

41,599 (18.6)

38,025 (18.4)

3574 (21.7)

 Ever

181,103 (80.9)

168,223 (81.2)

12,880 (78.0)

 Unknown

1039 (0.5)

988 (0.5)

51 (0.3)

Hormone replacement therapy,n(%)a

 Never

138,909 (62.1)

130,148 (62.8)

8761 (53.1)

 Ever

83,657 (37.4)

75,983 (36.7)

7674 (46.5)

 Unknown

1175 (0.5)

1105 (0.5)

70 (0.4)

Assessment center,n(%)

 East Midlands

28,471 (6.8)

26,106 (6.8)

2365 (6.8)

 London

58,162 (13.8)

54,306 (14.1)

3856 (11.0)

 North Eastern England

49,043 (11.7)

44,883 (11.6)

4160 (11.9)

 North West England

88,420 (21.0)

80,906 (21.0)

7514 (21.5)

 Scotland

55,745 (13.2)

50,767 (13.2)

4978 (14.2)

 South East England

12,216 (2.9)

10,874 (2.8)

1342 (3.8)

 South west England

36,372 (8.6)

33,252 (8.6)

3120 (8.9)

 Wales

17,998 (4.3)

16,483 (4.3)

1515 (4.3)

 West Midlands England

37,451 (8.9)

34,445 (8.9)

3006 (8.6)

 Yorkshire and the Humber

37,086 (8.8)

33,963 (8.8)

3123 (8.9)

  1. aAnalysis was only conducted among women
  2. Data are presented as mean ± standard deviation for continuous variables and n (%) for categorical variables