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Table 1 Characteristics of the participants

From: Association of weight-adjusted-waist index with non-alcoholic fatty liver disease and liver fibrosis: a cross-sectional study based on NHANES

Characteristics

Group 1

Group 2

P value

Sample size

3293

3294

 

Age(years)

43.49 ± 15.89

57.36 ± 16.04

 < 0.001

Stratified by age (years), n (%)

  

 < 0.001

 < 40

1494 (45.37)

553 (16.79)

 

 40–59

1163 (35.32)

1045 (31.72)

 

 > 60

636 (19.31)

1696 (51.49)

 

Gender, n (%)

  

 < 0.001

 Male

1869 (56.76)

1307 (39.68)

 

 Female

1424 (43.24)

1987 (60.32)

 

Race, n (%)

  

 < 0.001

 White

975 (29.61)

1224 (37.16)

 

 Black

996 (30.25)

732 (22.22)

 

 Other race

1322 (40.15)

1338 (40.62)

 

 Height (cm)

169.52 ± 9.60

163.29 ± 9.46

 < 0.001

Education, n (%)

  

 < 0.001

 Less than high school, high school

1223 (37.14)

1602 (48.63)

 

 More than high school

2067 (62.77)

1687 (51.21)

 

 Unclear

3 (0.09)

5 (0.15)

 

PIR, n (%)

  

 < 0.001

 < 1.35

742 (22.53)

890 (27.02)

 

 1.35–3.45

1017 (30.88)

1162 (35.28)

 

 > 3.45

1087 (33.01)

798 (24.23)

 

 Unclear

447 (13.57)

444 (13.48)

 

Smoking, n (%)

  

 < 0.001

 Ever

588 (17.86)

916 (27.81)

 

 Now

617 (18.74)

473 (14.36)

 

 Never

2088 (63.41)

1905 (57.83)

 

Hypertension, n (%)

  

 < 0.001

 Yes

819 (24.87)

1635 (49.64)

 

 No

2471 (75.04)

1654 (50.21)

 

 Unclear

3 (0.09)

5 (0.15)

 

Diabetes, n (%)

  

 < 0.001

 Yes

220 (6.68)

754 (22.89)

 

 No

2998 (91.04)

2406 (73.04)

 

 Unclear

75 (2.28)

134 (4.07)

 

Blood transfusion, n (%)

  

 < 0.001

 Yes

266 (8.08)

431 (13.08)

 

 No

3007 (91.31)

2801 (85.03)

 

 Unclear

20 (0.61)

62 (1.88)

 

Total daily energy intake (kcal), n (%)

  

 < 0.001

 < 1861.5

1138 (34.56)

1458 (44.26)

 

 ≥ 1861.5

1435 (43.58)

1162 (35.28)

 

 Unclear

720 (21.86)

674 (20.46)

 

Total daily sugar intake (gm), n (%)

  

 < 0.001

 < 88.44

1210 (36.74)

1386 (42.08)

 

 ≥ 88.44

1363 (41.39)

1234 (37.46)

 

 Unclear

720 (21.86)

674 (20.46)

 

Total daily fat intake (gm), n (%)

  

 < 0.001

 < 76.35

1179 (35.80)

1417 (43.02)

 

 ≥ 76.35

1394 (42.33)

1203 (36.52)

 

 Unclear

720 (21.86)

674 (20.46)

 

Total daily moisture intake (gm), n (%)

  

 < 0.001

 < 2454.88

1215 (36.90)

1381 (41.92)

 

 ≥ 2454.88

1358 (41.24)

1239 (37.61)

 

 Unclear

720 (21.86)

674 (20.46)

 

CRP (mg/l)

2.82 ± 5.04

5.18 ± 10.09

 < 0.001

Ferritin (ng/ml)

153.57 ± 162.07

157.61 ± 179.72

0.905

Activity intensity (min)

324.85 ± 200.51

329.10 ± 200.72

0.245

Stratified by CAP (dB/m), n (%)

  

 < 0.001

 < 274

2343 (71.15)

1370 (41.59)

 

 ≥ 274

950 (28.85)

1924 (58.41)

 

Stratified by LSM (Kpa), n (%)

  

 < 0.001

 < 8.0

3141 (95.38)

2796 (84.88)

 

 ≥ 8.0

152 (4.62)

498 (15.12)

 
  1. Mean ± SD for continuous variables: P value was calculated by weighted linear regression model
  2. % For Categorical variables: p value as calculated by weighted Chi-square test