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Table 1 Baseline characteristics of subjects

From: Subjective evaluation of the frequency of coffee intake and relationship to osteoporosis in Chinese men

Variable

Total

Frequency of coffee intake

P value

Seldom

Once per week

Greater than or equal to once per 2 days

N

992

886

56

50

Age

64.85 ± 9.41

65.35 ± 9.19

61.3 ± 9.77

59.9 ± 10.74

<0.001

HTN

463 (47.2 %)

424 (48.46 %)

27 (48.21 %)

12 (24 %)

0.002

CAD

100 (10.50 %)

93 (10.93 %)

5 (9.43 %)

2 (4.17 %)

0.244

DM

102 (10.52 %)

97 (11.2 %)

2 (3.64 %)

3 (6.12 %)

0.075

Gout

37 (3.82 %)

33 (3.82 %)

2 (3.64 %)

2 (4.08 %)

0.993

RA

37 (3.77 %)

33 (3.77 %)

2 (3.57 %)

2 (4.08 %)

0.991

Smoking

325 (32.76 %)

275 (31.04 %)

22 (39.29 %)

28 (56 %)

0.001

Drinking

279 (28.15 %)

233 (26.33 %)

22 (39.29 %)

24 (48 %)

0.001

Exercise

652 (65.73 %)

591 (66.7 %)

35 (62.5 %)

26 (52 %)

0.099

Education

292 (29.44 %)

250 (28.22 %)

24 (42.86 %)

18 (36 %)

0.009

VC

107 (10.79 %)

97 (10.95 %)

6 (10.71 %)

4 (8 %)

0.793

VD

28 (2.82 %)

22 (2.48 %)

2 (3.57 %)

4 (8 %)

0.150

Oil

19.75 ± 9.79

19.86 ± 9.85

18.25 ± 9.56

19.56 ± 9

0.486

T-score

−1.24 ± 0.91

−1.26 ± 0.91

−1.05 ± 1

−1.05 ± 0.87

0.079

OP

90 (9.07 %)

87 (9.82 %)

2 (3.57 %)

1 (2 %)

0.023

  1. HTN hypertension, CAD coronary artery disease, DM diabetes mellitus, RA rheumatoid arthritis, OP osteoporosis