Table 1 Descriptive statistics of the participants in the National Health Insurance Service.
From: Association of cholecystectomy with short-term and long-term risks of depression and suicide
Variables | No cholecystectomy | Cholecystectomy | p value |
|---|---|---|---|
(n = 66,880) | (n = 6,688) | ||
Age (years) * | 62(9.4) | 62(9.4) | 1.000 |
Sex | 1.000 | ||
Men | 40,410(60.4) | 4,041(60.4) | |
Women | 26,470(39.6) | 2,647(39.6) | |
Household incomea | < 0.0001 | ||
First (highest) | 21,361(31.9) | 2,587(38.7) | |
Second | 17,595(26.3) | 1,921(28.7) | |
Third | 15,227(22.8) | 1,243(18.6) | |
Fourth (lowest) | 12,697(19.0) | 937(14.0) | |
Body mass index (kg/m2)* | 23.9(2.9) | 24.5(3.0) | < 0.0001 |
Systolic blood pressure (mmHg)* | 126.5(15.5) | 126.9(15.8) | 0.089 |
Diastolic blood pressure (mmHg)* | 78.0(10.0) | 78.3(10.2) | 0.009 |
Total cholesterol (mg/dL)* | 196.5(37.8) | 195.4(39.1) | 0.034 |
Fasting serum glucose (mg/dL)* | 101.7(26.7) | 104.1(32.5) | < 0.0001 |
Cigarette smoking status | 0.384 | ||
Never smoker | 42,716(63.9) | 4,215(63.0) | |
Past smoker | 12,944(19.3) | 1,329(19.9) | |
Current smoker | 11,220(16.8) | 1,144(17.1) | |
Alcohol consumption (times/a week) | < 0.0001 | ||
None | 35,983(53.8) | 3,913(58.5) | |
1–2 times/week | 21,403(32.0) | 1,872(28.0) | |
3–4 times/week | 6,278(9.4) | 568(8.5) | |
≥5 times/week | 3,216(4.8) | 335(5.0) | |
Physical activity (times/a week) | < 0.0001 | ||
None | 25,497(38.1) | 2,762(41.3) | |
1–2 times/week | 17,208(25.7) | 1,675(25.1) | |
3–4 times/week | 9,703(14.5) | 919(13.7) | |
≥5 times/week | 14,472(21.6) | 1,332(19.9) | |
Charlson comorbidity index | < 0.0001 | ||
0 | 24,557(36.7) | 1,532(22.9) | |
1 | 21,282(31.8) | 2,026(30.3) | |
≥2 | 21,041(31.5) | 3,130(46.8) |
