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Table 1 Subject characteristics according to physical activity levels

From: Association of physical activity on body composition, cardiometabolic risk factors, and prevalence of cardiovascular disease in the Korean population (from the fifth Korea national health and nutrition examination survey, 2008–2011)

  Low
(n = 5309)
(20.2%)
Moderate
(n = 11,997)
(45.6%)
High
(n = 8988)
(34.2%)
P-value
Age (years) a53 ± 17 b49 ± 16 b49 ± 15 0.001
Male 1951 (36.7) 4651 (38.8) 4611 (51.3) 0.001
Hypertension 2099 (39.5) 4155 (34.6) 3142 (35.0) 0.001
Diabetes mellitus 669 (12.6) 1302 (10.9) 1074 (11.9) 0.002
Dyslipidemia 488 (9.2) 1168 (9.7) 821 (9.1) 0.283
Current smoker 1573 (29.6) 3471 (28.9) 3431 (38.1) 0.001
Systolic blood pressure (mm Hg) a120 ± 18 b118 ± 18 c119 ± 17 0.001
Diastolic blood pressure (mm Hg) a76 ± 11 b76 ± 11 b77 ± 11 0.001
Resting heart rate a71 ± 10 a70 ± 9 b69 ± 9 0.001
Hemoglobin (mg/dl) a13.7 ± 1.6 a13.8 ± 1.6 b14.1 ± 1.6 0.002
Creatinine (mg/dl) 0.8 ± 0.3 0.8 ± 0.2 0.8 ± 0.2 0.323
Fasting glucose (mg/dl) a99.1 ± 26.9 b97.5 ± 22.4 b97.9 ± 22.8 0.001
25 (OH) vitamin D3 (ng/mL) a17.5 ± 6.5 b17.9 ± 6.5 c19.5 ± 7.0 0.001
PTH (pg/ml) a71.3 ± 37.1 b67.5 ± 29.6 c65.2 ± 26.3 0.001
Ferritin (ng/mL) a82.7 ± 104.8 b81.2 ± 110.4 c80.4 ± 123.7 0.001
ALP (U/L) a231.3 ± 75.9 b223.4 ± 76.6 b224.8 ± 69.3 0.001
Triglyceride (mg/dl) a137.3 ± 106.5 b133.4 ± 105.1 b134.0 ± 118.0 0.101
HDL-cholesterol (mg/dl) a51.5 ± 12.5 b52.3 ± 12.7 b52.7 ± 13.0 0.004
  1. ALP alkaline phosphatase, HDL high-density lipoprotein, 25(OH)D 25-dihydroxyvitamin D; PTH = parathyroid hormone
  2. Values were represented as mean ± standard deviation, or n (%)
  3. a, b, cwere designated according to post hoc analysis. Same marker was used to represent no statistically significant difference