The Korean Journal of Clinical Laboratory Science : eISSN 2288-1662 / pISSN 1738-3544

Table. 1.

Table. 1.

General characteristics of participants

Variable Total (N=1,844) Men (N=972) Women (N=872) P-value
Age, years 44.6±0.4 44.4±0.4 44.8±0.5 0.529a
BMI (kg/m2) 23.8±0.10 24.4±0.12 23.2±0.14 <0.001a
Obesity* , N (%) <0.001b
No 1238 (67.3) 594 (61.4) 644 (73.9)
Yes 606 (32.7) 378 (38.6) 228 (26.1)
Waist circumference (cm) 80.6±0.31 84.0±0.34 77.2±0.43 <0.001a
Abdominal obesity**, N (%) <0.001b
No 1433 (77.9) 723 (73.8) 710 (82.6)
Yes 411 (22.1) 249 (26.2) 162 (17.4)
Mercury (μg/L) 4.0±0.08 4.7±0.13 3.3±0.09 <0.001a
Lead (μg/L) 2.1±0.03 2.4±0.04 1.8±0.03 <0.001a
Cadmium (μg/L) 1.01±0.02 0.93±0.03 1.08±0.02 <0.001a
ALT (IU/L) 22.0±0.72 26.8±1.32 17.3±0.48 <0.001a
Education, N (%) <0.001b
Elementary school or lower 234 (12.7) 89 (8.4) 145 (17.5)
Middle school 180 (9.5) 97 (9.5) 83 (9.6)
High school 547 (30.9) 281 (30.0) 266 (31.9)
College or higher 883 (46.8) 505 (52.1) 378 (41.0)
Household income, N (%) 0.673b
Low 485 (25.1) 254 (26.0) 231 (24.0)
Middle-low 449 (24.9) 234 (24.2) 215 (25.8)
Middle-high 457 (24.9) 240 (24.3) 217 (25.7)
High 453 (25.1) 244 (25.5) 209 (24.5)
Drinking status, N (%) <0.001b
Non drinking 284 (16.2) 105 (11.4) 179 (21.6)
<1 times/month 358 (19.9) 105 (11.1) 253 (29.8)
≥1 times/month 1202 (63.9) 762 (77.5) 440 (48.7)
Smoking status, N (%) <0.001b
Non smoker 992 (54.0) 230 (23.6) 762 (88.0)
Former smoker 373 (20.0) 332 (33.3) 41 (5.1)
Current smoker 479 (26.0) 410 (43.1) 69 (6.9)
Subjective health status, N (%) 0.169b
Very bad 53 (2.7) 23 (2.2) 30 (3.3)
Bad 255 (12.9) 130 (12.5) 125 (13.3)
Average 900 (49.5) 459 (47.8) 441 (51.4)
Good 539 (29.4) 300 (31.1) 239 (27.6)
Very good 97 (5.4) 60 (6.3) 37 (4.4)
Physical activity (MET minutes/week) 2218.9±77.4 2737.9±111.4 1699.8±98.3 <0.001a
eGFR (mL/min per 1.73 m2) 97.1±0.39 93.7±0.54 100.5±0.55 <0.001a
Hemoglobin (g/dL) 14.2±0.03 15.3±0.04 13.1±0.04 <0.001a
Diabetes, N (%) 0.453b
No 1634 (90.1) 851 (89.5) 783 (90.7)
Yes 210 (9.9) 121 (10.5) 89 (9.3)
Hypertension, N (%) 0.366b
No 1509 (82.5) 777 (81.6) 732 (83.4)
Yes 335 (17.5) 195 (18.4) 140 (16.6)
Hyperlipidemia, N (%) 0.301b
No 1551 (85.1) 823 (86.1) 728 (84.1)
Yes 293 (14.9) 149 (13.9) 144 (15.9)

Values are presented as weighted mean±weighted standard error or weighted percent.

aCalculated by complex samples general linear model.

bCalculated by complex samples chi-square test.

*defined as body mass index ≥25 kg/m2.

**defined as waist circumference ≥90 cm for Korean men and ≥85 cm for Korean women.

Abbreviations: ALT, alanine aminotransferase; eGFR, estimated glomerular filtration rate; MET, metabolic equivalent of task.

Korean J Clin Lab Sci 2022;54:192-200 https://doi.org/10.15324/kjcls.2022.54.3.192
© 2022 Korean J Clin Lab Sci