Table. 1.

Baseline characteristics of study participants according to NAFLD in 2019–2021 KNHANES

Variables NAFLD (n=8,263) Non-NAFLD (n=4,661) P-value
Age (y) 47.21±0.27 44.78±0.34 <0.001
Sex <0.001
Male 3,615 (51.3) 1,730 (38.4)
Female 4,648 (48.7) 2,931 (61.6)
Education <0.001
≤Middle school 2,122 (18.0) 1,030 (15.1)
High school 2,867 (37.5) 1,592 (36.8)
≥College 3,274 (44.5) 2,039 (48.1)
Household income 0.005
Low 1,334 (12.1) 822 (14.1)
Mid-low 2,013 (23.4) 1,062 (21.4)
Mid-high 2,341 (30.0) 1,238 (28.3)
High 2,575 (34.5) 1,539 (36.3)
Residential area 0.001
Urban 6,596 (84.1) 3,813 (86.6)
Rural 1,667 (15.9) 848 (13.4)
Smoking <0.001
Yes 1,192 (17.4) 611 (14.0)
No 7,071 (82.6) 4,050 (86.0)
Alcohol drinking 0.779
Yes 4,083 (53.5) 2,350 (53.2)
No 4,180 (46.5) 2,311 (46.8)
Hypertension diagnosis <0.001
Yes 2,039 (19.5) 664 (10.6)
No 6,224 (80.5) 3,997 (89.4)
Hypertension medication <0.001
Yes 1,886 (17.6) 577 (9.2)
No 6,377 (82.4) 4,084 (90.8)
Dyslipidemia medication <0.001
Yes 1,312 (12.5) 350 (6.0)
No 6,951 (87.5) 4,311 (94.0)
Weight (kg) 71.0±0.2 56.00±0.2 <0.001
Height (cm) 165.6±0.1 164.3±0.2 <0.001
BMI (kg/m2) 25.8±0.1 20.7±0.0 <0.001
Waist circumstance (cm) 88.0±0.1 74.3±0.1 <0.001
Systolic blood pressure (mmHg) 119.3±0.2 112.7±0.3 <0.001
Diastolic blood pressure (mmHg) 76.6±0.2 72.2±0.2 <0.001
Fasting blood glucose (mg/dL) 99.0±0.2 92.7±0.2 <0.001
HbA1c (%) 5.7±0.0 5.5±0.0 <0.001
AST (IU/L) 25.1±0.2 22.2±0.3 <0.001
ALT (IU/L) 28.6±0.3 14.7±0.1 <0.001
Total cholesterol (mg/dL) 198.0±0.5 188.9±0.6 <0.001
Triglyceride (mg/dL) 142.1±1.6 93.6±1.2 <0.001
HDL cholesterol (mg/dL) 50.0±0.2 57.4±0.3 <0.001
LDL cholesterol (mg/dL) 121.5±0.5 113.3±0.6 <0.001

Values are presented as mean±standard error or number (%).

NAFLD, non-alcoholic fatty liver disease; KNHANES, Korea National Health and Nutritional Health and Nutrition Examination Survey; BMI, body mass index; HbA1c, glycated hemoglobin; AST, aspartate aminotransferase; ALT, alanine aminotransaminase; HDL, high-density lipoprotein; LDL, low-density lipoprotein.

Korean J Fam Pract 2023;13:233~239 https://doi.org/10.21215/kjfp.2023.13.4.233
© KJFP