Table 3 Cumulative incidence rate of MetS by levels of different status markers and multiple logistic regression analysis of MetS incidence and the associated factors in the rural population of Liaoning Province, China

Age

 35–44

124

21.4

1.00 (reference)

124

16.2

1.00 (reference)

248

18.5

1.00 (reference)

 45–54

166

21.3

1.02 (0.78,1.43)

222

26.5

1.78 (1.37,2.31)

388

24.0

1.40 (1.16,1.69)

 55–64

197

23.9

1.13 (0.85,1.50)

199

33.6

2.41 (1.78,3.25)

396

28.0

1.69 (1.37,2.07)

 ≥ 65

89

22.1

1.02 (0.70,1.48)

73

36.7

2.61 (1.73,3.95)

162

26.9

1.57 (1.19,2.07)

Number of child

 ≤ 1

235

21.8

1.00 (reference)

257

23.4

1.00 (reference)

492

22.6

1.00 (reference)

 > 1

341

22.6

1.04 (0.85,1.29)

361

27.8

0.97 (0.79,1.19)

702

25.0

1.00 (0.87,1.16)

Ethnicity

 Hank

538

22.2

1.00 (reference)

574

25.6

1.00 (reference)

1112

23.8

1.00 (reference)

 Others^a

38

23.6

1.04 (0.71,1.54)

44

28.4

1.11 (0.76,1.62)

82

25.9

1.19 (0.84,1.44)

Education status

 Primary school or below

245

22.5

1.00 (reference)

366

29.5

1.00 (reference)

611

26.2

1.00 (reference)

 Middle school

273

22.1

0.99 (0.80,1.22)

205

22.0

0.91 (0.73,1.13)

478

22.1

0.93 (0.80,1.08)

 High school or above

58

22.4

1.04 (0.73,1.47)

47

21.1

0.82 (0.56,1.19)

105

21.8

0.89 (0.69,1.14)

Physical activity

 Light

150

22.8

1.00 (reference)

264

30.0

1.00 (reference)

414

26.9

1.00 (reference)

 Moderate

90

19.7

0.88 (0.64,1.19)

107

23.3

0.79 (0.60,1.04)

197

21.5

0.81 (0.66,0.99)

 Severe

327

22.6

1.06 (0.82,1.35)

242

23.4

0.83 (0.67,1.04)

569

23.0

0.92 (0.78,1.08)

Annual income (CNY/year)

 ≤ 5000

72

22.6

1.00 (reference)

61

28.6

1.00 (reference)

133

25.0

1.00 (reference)

 5000–20,000

336

23.0

1.06 (0.78,1.43)

364

27.1

1.10 (0.78,1.55)

700

25.0

1.08 (0.86,1.35)

 > 20,000

168

20.8

0.94 (0.67,1.32)

192

22.9

1.01 (0.70,1.46)

360

21.9

0.97 (0.76,1.24)

Sleep duration (h/day)

 ≤ 7

260

21.8

1.00 (reference)

316

25.0

1.00 (reference)

576

23.5

1.00 (reference)

 7–8

171

22.0

1.02 (0.81,1.26)

190

27.6

1.34 (1.07,1.67)

361

24.6

1.14 (0.98,1.33)

 8–9

91

22.9

1.05 (0.79,1.39)

70

25.1

1.08 (0.79,1.47)

161

23.8

1.06 (0.86,1.30)

 > 9

53

24.5

1.22 (0.86,1.73)

41

25.6

1.16 (0.78,1.72)

94

25.0

1.16 (0.89,1.50)

Marriage

 No

19

37.3

1.00(reference)

0

0

1.00 (reference)

19

32.8

1.00(reference)

 Yes^b

557

22.0

0.46(0.25,0.85)

618

25.9

-

1175

23.9

0.57(0.32,1.03)

Current smoking status

 No

252

24.0

1.00 (reference)

500

25.0

1.00 (reference)

752

24.6

1.00 (reference)

 Yes

324

21.1

0.81 (0.67,0.99)

118

30.1

1.09 (0.84,1.41)

442

22.9

0.94 (0.81,1.11)

Current drinking status

 No

287

20.8

1.00 (reference)

599

25.8

1.00 (reference)

886

23.9

1.00 (reference)

 Yes

289

23.9

1.23 (1.01,1.50)

19

26.8

0.80 (0.46,1.42)

308

24.1

1.17 (0.98,1.41)

Beans or Bean product

 Rarely

173

20.3

1.00 (reference)

254

25.1

1.00 (reference)

427

22.9

1.00 (reference)

 2–3 times

324

23.3

1.18 (0.95,1.46)

286

25.2

1.02 (0.84,1.25)

610

24.1

1.10 (0.95,1.28)

 ≥ 4 times

75

22.7

1.15 (0.84,1.58)

76

31.7

1.43 (1.04,1.96)

151

26.5

1.26 (1.01,1.57)

Tea intake (Frequency/day)

 No

173

20.3

1.00 (reference)

422

24.4

1.00 (reference)

685

22.8

1.00 (reference)

 Rarely

324

23.3

1.22 (0.96,1.53)

115

28.5

1.37 (1.07,1.77)

269

26.0

1.29 (1.09,1.53)

 1–2 times

75

22.7

1.12 (0.87,1.43)

75

31.6

1.43 (1.05,1.95)

208

25.8

1.24 (1.02,1.50)

 3–4 times

572

22.2

1.09 (0.67,1.77)

6

26.1

1.29 (0.49,3.38)

31

23.3

1.09 (0.71,1.68)