Skip to main content

Table 1 Baseline characteristics of the participants

From: Association between systemic immune-inflammation index and metabolic syndrome and its components: results from the National Health and Nutrition Examination Survey 2011–2016

Variable

No

Q1

Q2

Q3

Q4

P value

Age (years)

 

46.58 (45.63,47.52)

46.87 (45.96,47.79)

47.46 (46.57,48.35)

49.69 (48.60,50.78)

 < 0.001

Gender % (SE)

     

 < 0.001

 Male

6198

54.65 (1.26)

51.84 (1.01)

48.79 (1.32)

43.75 (1.07)

 

 Female

6204

45.35 (1.26)

48.16 (1.01)

51.21 (1.32)

56.25 (1.07)

 

Race/Ethnicity % (SE)

     

 < 0.001

 Non-Hispanic Black

2652

18.41 (1.93)

9.44 (1.11)

7.47 (0.87)

6.90 (0.79)

 

 Non-Hispanic White

5020

60.10 (2.78)

68.38 (2.24)

70.22 (2.15)

73.14 (2.12)

 

 Mexican American

1650

8.04 (1.03)

7.88 (1.10)

8.47 (1.24)

7.88 (1.27)

 

 Others

3080

13.45 (0.97)

14.31 (1.03)

13.83 (1.00)

12.08 (1.08)

 

Education levels % (SE)

     

0.012

 Less than high school

2575

15.03 (1.32)

13.15 (1.03)

12.54 (1.07)

14.60 (1.14)

 

 High school diploma

2733

20.77 (1.28)

19.03 (1.04)

22.20 (0.96)

22.15 (1.22)

 

 More than high school

7094

64.20 (2.08)

67.83 (1.57)

65.26 (1.39)

63.26 (1.80)

 

Marital status % (SE)

     

0.001

 Married

7299

64.47 (1.17)

65.80 (1.58)

62.99 (1.37)

59.81 (1.31)

 

 Single or separated

5103

35.53 (1.17)

34.20 (1.58)

37.00 (1.37)

40.19 (1.31)

 

Alcohol consumption % (SE)

     

0.402

 No

3410

22.35 (1.34)

21.54 (1.25)

20.48 (1.41)

20.39 (1.07)

 

 Yes

8992

77.65 (1.34)

78.46 (1.25)

79.52 (1.41)

79.61 (1.07)

 

Use of medication % (SE)

     

 < 0.001

 No

5209

44.88 (1.18)

42.98 (1.24)

39.62 (1.11)

34.93 (1.16)

 

 Yes

7193

55.12 (1.18)

57.02 (1.24)

60.38 (1.11)

65.07 (1.16)

 

History of cancer % (SE)

     

0.016

 No

11,257

91.30 (0.76)

89.33 (0.83)

89.86 (0.77)

87.37 (0.79)

 

 Yes

1145

8.70 (0.76)

10.67 (0.83)

10.14 (0.77)

12.63 (0.79)

 

Family history of diabetes % (SE)

    

0.029

 No

10,006

83.01 (0.97)

81.22 (1.01)

78.50 (1.02)

79.32 (1.23)

 

 Yes

2396

16.99 (0.97)

18.78 (1.01)

21.50 (1.02)

20.68 (1.23)

 

Poverty income ratio % (SE)

     

0.93

  < 1

2734

14.66 (1.10)

14.82 (1.03)

14.16 (1.15)

15.35 (1.27)

 

 1 to 2

3308

20.09 (1.31)

20.75 (0.99)

21.01 (1.04)

21.75 (1.19)

 

 2 to 4

3210

29.09 (1.40)

28.03 (1.36)

27.95 (1.53)

27.51 (1.39)

 

 >4

3150

36.16 (2.44)

36.39 (2.13)

36.89 (2.11)

35.39 (1.97)

 

Smoking status % (SE)

     

 < 0.001

 Never smoker

6973

58.45 (1.51)

58.08 (1.20)

56.17 (1.27)

50.87 (1.55)

 

 Former smoker

2937

23.64 (1.36)

23.87 (1.04)

25.17 (0.87)

26.91 (1.33)

 

 Current smoker

2492

17.91 (1.17)

18.05 (1.08)

18.66 (1.06)

22.22 (1.07)

 

Physical activity % (SE)

     

 < 0.001

 Inactive

3039

18.05 (1.24)

19.57 (0.94)

20.28 (1.14)

25.55 (0.99)

 

 Less active

1737

11.16 (0.83)

12.94 (0.79)

13.26 (0.73)

15.55 (0.87)

 

 Namely active

7626

70.80 (1.33)

67.50 (1.08)

66.46 (1.25)

58.90 (1.25)

 

MetS % (SE)

     

 < 0.001

 No

8913

77.30 (1.03)

73.89 (1.06)

71.68 (1.16)

69.10 (1.00)

 

 Yes

3489

22.70 (1.03)

26.11 (1.06)

28.32 (1.16)

30.90 (1.00)

 

Elevated FPG % (SE)

     

0.01

 No

8619

73.39 (0.99)

73.30 (1.19)

72.51 (1.11)

69.20 (1.08)

 

 Yes

3783

26.61 (0.99)

26.70 (1.19)

27.49 (1.11)

30.80 (1.08)

 

Low HDL-C % (SE)

     

0.006

 No

8617

73.44 (1.27)

71.73 (1.27)

70.14 (1.42)

68.09 (1.01)

 

 Yes

3785

26.56 (1.27)

28.27 (1.27)

29.86 (1.42)

31.91 (1.01)

 

Elevated TG % (SE)

     

0.023

 No

7874

66.22 (1.60)

63.33 (1.22)

62.13 (1.51)

61.36 (1.12)

 

 Yes

4528

33.78 (1.60)

36.67 (1.22)

37.87 (1.51)

38.64 (1.12)

 

Elevated WC % (SE)

     

 < 0.001

 No

5315

50.78 (1.74)

44.21 (1.37)

38.66 (1.51)

35.64 (1.10)

 

 Yes

7087

49.23 (1.74)

55.79 (1.37)

61.34 (1.51)

64.36 (1.10)

 

Elevated BP % (SE)

     

0.002

 No

10,347

87.31 (0.83)

86.20 (0.91)

83.46 (0.85)

83.29 (0.94)

 

 Yes

2055

12.69 (0.83)

13.80 (0.91)

16.54 (0.85)

16.71 (0.94)

 

SII (1,000 cells/µl)

 

242.55 (240.18,244.93)

381.07 (379.36,382.78)

525.24 (523.09,527.39)

901.37 (887.48,915.27)

 < 0.001