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Table 1 Demographic and clinical characteristics of the studied subjects based on fatty liver disease

From: Non-alcoholic fatty liver disease and socioeconomic determinants in an Iranian cohort study

Variable

Total

FLI -**

N (%)

FLI + ***

N (%)

P-value *

Age (years)

35–44

2816

856 (30.4)

1960 (69.6)

 < 0.001

45–59

3381

803 (23.8)

2578 (76.2)

 ≥ 60

1055

347 (32.9)

708 (67.1)

Gender

Male

2758

795 (28.8)

1963 (71.2)

0.083

Female

4494

1211 (26.9)

3283 (73.1)

Area

Urban

4492

1010 (22.5)

3482 (77.5)

 < 0.001

Rural

2760

996 (36)

1764 (64)

Smoking

No

5861

1542 (26.3)

4319 (73.7)

 < 0.001

Yes

1391

464 (33.4)

927 (66.6)

BMI

Underweight

147

147 (100)

0

 < 0.001

Normal

1556

94 (6)

1462 (94)

Overweight

1970

388 (19.7)

1582 (80.3)

Obese

9357

9 (0.3)

3570 (99.7)

Physical activity (MET Score)

Q1

1868

414 (22)

1454 (78)

 < 0.001

Q2

1807

432 (24)

1375 (76)

Q3

1831

565 (31)

1266 (69)

Q4

1746

595 (34)

1151 (64)

Energy intake (Kcalories per day)

Q1

1814

551 (30.4)

1263 (69.6)

0.001

Q2

1812

529 (29.2)

1283 (70.8)

Q3

1813

471 (26)

1342 (74)

Q4

1813

455 (25.1)

1358 (74.9)

Dyslipidemia

Normal

3938

1579 (40.1)

2359 (59.9)

 < 0.001

High

3314

427 (12.9)

2887 (87.1)

Diabetic

No

5552

1784 (32.1)

3768 (67.9)

 < 0.001

Yes

1700

222 (13.1)

1478 (86.9)

Educational level

Illiterate

4611

1346 (29.2)

3265 (70.8)

 < 0.001

Primary school

1164

281 (24.1)

883 (75.9)

Secondary school

474

110 (23.2)

364 (76.8)

High school

513

146 (28.5)

367 (71.5)

University

490

123 (25)

367 (75)

  1. *P-value in the chi-square test
  2. **FLI-: A negative FLI index is someone who does not have fatty liver (Fatty liver index < 30)
  3. *** FLI + : A positive FLI index is someone with fatty liver (Fatty liver index:60–100)