Table 1.
Variables at baseline and after propensity score matching in the Normal-GGT and Abnormal-GGT groups
| Values in unmatched subjects | Values in propensity score matched subjects | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Normal-GGT | Abnormal-GGT | Normal-GGT | Abnormal-GGT | |||||||||
| Number or mean | SD or % | Number or mean | SD or % | P value | Standardized difference | Number or mean | SD or % | Number or mean | SD or % | P value | Standardized difference | |
| n | 2713 | 264 | 260 | 260 | ||||||||
| Gender (male/female) | 982/1731 | (36.2%/63.8%) | 191/73 | (72.3%/27.7%) | < 0.01 | 0.78 | 193/67 | (74.2%/25.8%) | 188/72 | (72.3%/27.7%) | 0.62 | 0.04 |
| Age (years) | 54.6 | (11.8) | 55.1 | (10.2) | 0.43 | 0.05 | 58.9 | (11.8) | 55.2 | (10.2) | < 0.01 | 0.34 |
| Heart disease | 136 | (5.0%) | 20 | (7.6%) | 0.07 | 0.11 | 24 | (9.2%) | 20 | (7.7%) | 0.53 | 0.06 |
| Hypertension | 554 | (20.4%) | 68 | (25.8%) | 0.04 | 0.13 | 80 | (30.8%) | 66 | (25.4%) | 0.17 | 0.12 |
| Hyperlipidemia | 553 | (20.4%) | 53 | (20.1%) | 0.91 | < 0.01 | 68 | (26.2%) | 52 | (20.0%) | 0.10 | 0.15 |
| Hyperuricemia | 70 | (2.6%) | 15 | (5.7%) | < 0.01 | 0.16 | 13 | (5.0%) | 15 | (5.8%) | 0.70 | 0.03 |
| Diabetes | 92 | (3.4%) | 12 | (4.5%) | 0.33 | 0.06 | 16 | (6.2%) | 12 | (4.6%) | 0.44 | 0.07 |
| BMI | 21.1 | (2.6) | 22.1 | (2.5) | < 0.01 | 0.39 | 21.9 | (2.6) | 22.0 | (2.5) | 0.43 | 0.07 |
| Hemoglobin g/dl | 13.1 | (1.3) | 13.8 | (1.2) | < 0.01 | 0.53 | 13.7 | (1.3) | 13.8 | (1.2) | 0.48 | 0.06 |
| Platelet (104/μl) | 22.3 | (5.3) | 22.6 | (5.8) | 0.35 | 0.06 | 21.8 | (5.0) | 22.5 | (5.8) | 0.15 | 0.13 |
| ALT (IU/l) | 16.7 | (7.6) | 24.3 | (14.6) | < 0.01 | 0.66 | 22.4 | (13.0) | 23.5 | (11.4) | 0.34 | 0.08 |
| Albumin (g/dl) | 4.2 | (0.24) | 4.3 | (0.23) | 0.17 | 0.09 | 4.2 | (0.25) | 4.3 | (0.23) | 0.11 | 0.14 |
| Total cholesterol (mg/dl) | 208.1 | (32.6) | 206.2 | (31.6) | 0.37 | 0.06 | 206.0 | (34.8) | 205.7 | (31.4) | 0.92 | < 0.01 |
| Triglyceride (mg/dl) | 83.1 | (40.2) | 98.6 | (48.5) | < 0.01 | 0.35 | 99.3 | (64.8) | 97.8 | (45.9) | 0.76 | 0.03 |
| LDL (mg/dl) | 123.4 | (27.7) | 121.4 | (27.9) | 0.26 | 0.07 | 121.7 | (28.7) | 121.0 | (28.0) | 0.79 | 0.02 |
| HDL(mg/dl) | 68.1 | (16.1) | 65.2 | (15.8) | < 0.01 | 0.18 | 64.2 | (17.8) | 65.1 | (15.9) | 0.53 | 0.06 |
| eGFR mL/min/1.73 m2 | 68.5 | (12.4) | 67.2 | (12.5) | 0.08 | 0.11 | 66.2 | (10.8) | 67.1 | (12.5) | 0.38 | 0.08 |
| FBS (mg/dl) | 98.5 | (13.3) | 102.4 | (15.0) | < 0.01 | 0.28 | 100.1 | (13.5) | 102.2 | (15.0) | 0.09 | 0.15 |
Data are presented as numbers with SDs or percentages in parentheses
SD Standard deviation, Normal-GGT Normal serum gamma-glutamyltransferase values detected during the observation period, Abnormal-GGT Elevated serum gamma-glutamyltransferase values detected more than half the times during observation period, BMI Body mass index, ALT Alanine aminotransferase, LDL Low-density lipoprotein, HDL High-density lipoprotein, eGFR Estimated glomerular filtration rate, FBS Fasting blood sugar