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. 2025 Sep 12;8(4):1174–1183. doi: 10.31662/jmaj.2024-0429

Table 2.

Baseline Characteristics from Specific Health Checkups in 2013, Including Laboratory Tests and Questionnaire Items after Propensity Score Matching.

Age < 49 years Age ≥ 49 years
Precontemplation stage Contemplation-or-Higher Stage Standardized difference Precontemplation stage Contemplation-or-Higher Stage Standardized difference
(n=1495) (n=1495) (n=1749) (n=1749)
mean SD mean SD mean SD mean SD
Age (years) 43.6 2.5 43.6 2.6 -0.014 56.1 5.3 56.4 5.5 0.050
SBP (mmHg) 115.1 15.6 114.6 15.3 -0.038 120.6 19.3 120.4 18.1 -0.009
DBP (mmHg) 73.5 11.5 73.0 11.0 -0.043 77.7 12.6 77.4 11.9 -0.023
Fasting Plasma Glucose (mg/dL) 98.4 15.2 98.2 15.4 -0.019 101.1 17.1 101.0 15.3 -0.003
Triglycerides (mg/dL) 118.7 96.8 116.9 84.1 -0.020 121.1 106.9 119.6 87.5 -0.016
HDL Cholesterol (mg/dL) 59.3 14.2 59.8 14.5 0.037 61.1 14.8 61.6 14.7 0.038
LDL Cholesterol (mg/dL) 125.0 30.7 123.3 28.7 -0.054 127.3 28.8 125.7 29.2 -0.056
AST (U/L) 22.2 11.9 21.8 8.0 -0.044 22.2 8.2 22.1 7.7 -0.012
ALT (U/L) 26.1 17.9 24.9 14.3 -0.075 22.6 13.1 22.0 11.6 -0.049
γ-GT (U/L) 41.5 40.5 40.7 43.0 -0.020 46.6 54.0 46.4 50.7 -0.004
RBC (×104/μL) 499.1 38.2 497.8 34.8 -0.035 483.2 38.5 480.6 38.7 -0.067
Hb (g/dL) 15.3 0.9 15.3 0.9 -0.024 15.0 1.0 15.0 1.0 -0.049
Ht (%) 44.7 2.6 44.6 2.5 -0.014 44.0 2.7 43.9 2.7 -0.050
CRE (mg/dL) 0.8 0.1 0.8 0.1 -0.043 0.8 0.1 0.8 0.1 -0.032
BMI (kg/m2) 22.9 3.5 22.6 2.9 -0.080 22.6 2.8 22.3 2.5 -0.099
Waist Circumference (cm) 81.1 9.1 80.4 7.8 -0.079 81.6 7.9 81.0 7.2 -0.075
n % n % n % n %
Smoking History 676 45.2 735 49.2 0.079 716 40.9 756 43.2 0.046
Weight Gain ≥10 kg Since Age 20 536 35.9 491 32.8 -0.063 641 36.7 580 33.2 -0.073
Regular Exercise (≥30 min, ≥2×/week, ≥1 year) 208 13.9 185 12.4 -0.046 313 17.9 303 17.3 -0.015
Daily Walking/Physical Activity (>1 hour) 247 16.5 273 18.3 0.046 365 20.9 396 22.6 0.043
Walking Faster Than Peers of the Same Age and Sex 392 26.2 356 23.8 -0.056 568 32.5 550 31.5 -0.022
Eating Speed 0.041 0.023
 Quicker 613 41.0 582 38.9 581 33.2 553 31.6
 Normal 800 53.5 826 55.3 1018 58.2 1050 60.0
 Slower 82 5.5 87 5.8 150 8.6 146 8.4
Late Supper within 2 Hours of Bedtime (≥3 times/week) 596 39.9 557 37.3 -0.054 534 30.5 517 29.6 -0.021
Skipping Breakfast (≥3 times/week) 402 26.9 413 27.6 0.017 285 16.3 291 16.6 0.009
Alcohol Consumption Frequency -0.008 0.030
 None or rarely 473 31.6 509 34.1 512 29.3 518 29.6
 Occasional 464 31.0 402 26.9 429 24.5 372 21.3
 Every day 558 37.3 584 39.1 808 46.2 859 49.1
Adequate Sleep 542 36.3 557 37.3 0.021 719 41.1 716 40.9 -0.003

γ-GT: gamma-glutamyltransferase; ALT: alanine aminotransferase; AST: aspartate aminotransferase; BMI: body mass index; CRE: creatinine; DBP: diastolic blood pressure; Hb: hemoglobin; HDL: high-density lipoprotein; Ht: hematocrit; LDL: low-density lipoprotein; RBC: red blood cell count; SBP: systolic blood pressure.