Skip to main content

Table 3 Basic characteristics of participants according to train and internal validation set

From: Using new indices to predict metabolism dysfunction-associated fatty liver disease (MAFLD): analysis of the national health and nutrition examination survey database

Characteristic

Train Set,

N = 8858(69%)1

Validation1,

N = 3796(31%)1

p-value2

Sex

  

0.7

Male

4,354(49%)

1,858(49%)

 

FeMale

4,504(51%)

1,938(51%)

 

Age

46 (32, 60)

46 (32, 60)

0.8

BMI (kg/m2)

28 (24, 32)

28 (24, 32)

0.8

Ratio of income to poverty

2.81 (1.37, 4.81)

2.96 (1.47, 4.97)

0.10

Race

  

0.5

Mexican American

1,441(8.9%)

590(8.5%)

 

Other Hispanic

1,014(6.0%)

425(5.8%)

 

Non-Hispanic White

3,704(67%)

1,612(68%)

 

Non-Hispanic Black

1,734(10%)

749(10%)

 

Other Race

965(7.6%)

420(7.1%)

 

AIP

-0.05 (0.34)

-0.05 (0.33)

0.7

MAFLD

  

0.3

NO

6,044(68%)

2,590(69%)

 

YES

2,814(32%)

1,206(31%)

 

AGTR

2.26 (1.48, 3.13)

2.26 (1.52, 3.15)

0.4

UHR

0.10 (0.07, 0.14)

0.11 (0.08, 0.14)

0.5

TC (mmol/l)

1.15 (0.79, 1.72)

1.17 (0.81, 1.75)

0.3

CRE(umol/L)

325 (83)

327 (82)

0.4

WC (cm)

99 (16)

99 (17)

0.9

Hypertension, n (%)

  

0.3

NO

5,798(68%)

2,478(69%)

 

YES

3,060(32%)

1,318(31%)

 

Overweight/Obesity

  

0.8

NO

2,738(31%)

1,173(31%)

 

YES

6,120(69%)

2,623(69%)

 

Activity

  

0.6

Light

2,222(21%)

923(21%)

 

Moderate

3,472(39%)

1,514(39%)

 

Vigorous

3,164(39%)

1,359(41%)

 

ALB(g/L)

  

0.5

Mean (SD)

42.8 (3.3)

42.8 (3.3)

 

Drinking

  

0.8

Never

2,314(21%)

1,011(21%)

 

Moderate

862(10%)

358(9.7%)

 

Excessive

5,682(69%)

2,427(69%)

 

ALP(U/L)

63 (52, 77)

63 (52, 76)

0.10

ALT(U/L)

21 (16, 29)

21 (16, 28)

0.6

Diabetes, n (%)

  

0.8

NO

7,821(91%)

3,301(91%)

 

YES

1,037(9.2%)

495(9.4%)

 

Smoking

  

0.059

NO

4,910(55%)

2,184(57%)

 

YES

3,948(45%)

1,612(43%)

 

Protein (gm)

83 (34)

83 (35)

0.6

Vitamin C (mg)

64 (30, 114)

65 (31, 115)

0.8

Mercury, total (umol/L)

7 (11)

7 (12)

0.8

Blood cadmium (nmol/L)

4.5 (5.4)

4.3 (5.3)

0.2

  1. AGTR Albumin to glutamyl transpeptidase ratio, AIP Plasma atherogenicity index, UHR Serum uric acid to high-density lipoprotein cholesterol ratio
  2. 1n (unweighted)(%); Median (IQR)
  3. 2chi-squared test with Rao & Scott's second-order correction; Wilcoxon rank-sum test for complex survey samples; t-test adapted to complex survey samples