Table 1. Baseline characteristics of participants.
| Characteristics | Cholecystectomy (n=76,485) | Non-cholecystectomy (n=76,485) | P value |
|---|---|---|---|
| Age (years) | 52.47±12.76 | 52.47±12.76 | 1.000 |
| Sex, male | 38,736 (50.65) | 38,736 (50.65) | 1.000 |
| Body mass index (kg/m2) | 23.68±2.98 | 23.05±2.782 | <0.001 |
| Waist circumference (cm) | 80.07±8.15 | 78.42±7.95 | <0.001 |
| Fasting blood glucose (mg/dL) | 94.92±18.92 | 94.13±17.72 | <0.001 |
| Total cholesterol (mg/dL) | 195.57±35.69 | 196.35±34.9 | <0.001 |
| Triglyceride (mg/dL) | 100.43 (100.06–100.8) | 98.57 (98.19–98.95) | <0.0001 |
| HDL-C (mg/dL) | 56.06±20.05 | 57.77±19.86 | <0.001 |
| LDL-C (mg/dL) | 117.99±33.38 | 117.12±33.51 | <0.001 |
| Systolic blood pressure | 120.13±13.92 | 120.22±14.33 | 0.201 |
| Diastolic blood pressure | 74.92±9.43 | 74.94±9.61 | 0.743 |
| Comorbidities | |||
| Hypertension | 16,554 (21.64) | 15.426 (20.17) | <0.001 |
| Dyslipidemia | 9,459 (12.37) | 9,341 (12.21) | 0.358 |
| Diabetes mellitus | 4,238 (5.54) | 3,325 (4.35) | <0.001 |
| Smoking status | <0.001 | ||
| Non-smoker | 47,873 (62.59) | 48,872 (63.9) | |
| Ex-smoker | 12,609 (16.49) | 11,951 (15.63) | |
| Current | 16,003 (20.92) | 15,662 (20.48) | |
| Alcohol | <0.001 | ||
| None | 44,897 (58.7) | 42,346 (55.37) | |
| Mild | 27,033 (35.34) | 29,323 (38.34) | |
| Heavy | 4,555 (5.96) | 4,816 (6.3) | |
| Regular exercise | 14,760 (19.3) | 15,584 (20.38) | <0.001 |
| Low income (<25%) | 13,893 (18.16) | 14,829 (19.39) | <0.001 |
Data are expressed as the mean ± SD, n (%) or median (interquartile range). HDL-C, high density lipoprotein cholesterol; LDL-C, low density lipoprotein cholesterol.