Baseline characteristics of the study population (N=106 678)
| Characteristic | N (%)* |
|---|---|
| Sex | |
| Female | 69 277 (64.94) |
| Age, median (Q1–Q3), year | 50.78 (42.66–59.27) |
| Body mass index, kg/m2 | |
| <18.5 | 2928 (2.74) |
| 18.5 to<23 | 37 200 (34.87) |
| 23 to <25 | 24 657 (23.11) |
| 25 to <30 | 34 573 (32.41) |
| ≥30 | 7320 (6.86) |
| Smoking status | |
| Never | 84 229 (78.96) |
| Former | 6829 (6.40) |
| Current | 15 620 (14.64) |
| Alcohol use | |
| Never | 64 932 (60.87) |
| Former | 2121 (1.99) |
| Current | 39 625 (37.15) |
| Betel nut use | |
| Never | 101 017 (94.69) |
| Former | 3194 (2.99) |
| Current | 2467 (2.31) |
| Marital status | |
| Married or cohabited | 90 207 (84.56) |
| Single | 5284 (4.95) |
| Widow/divorce/separation/other | 11 187 (10.49) |
| Education | |
| College and above | 22 061 (20.68) |
| High school | 30 497 (28.59) |
| Junior high school | 17 199 (16.12) |
| Elementary school and below | 36 921 (34.61) |
| Diabetes | 5770 (5.41) |
| Asthma or lung disease | 2272 (2.13) |
| History of tuberculosis in family | 1687 (1.58) |
| Estimated glomerular filtration rate (eGFR)†, median (Q1–Q3), mL/min/1.73 m2 | 89.82 (78.07–99.79) |
| Median annual income in district, median (Q1–Q3), NT$ | 529 000 (511 000–586 000) |
*For continuous variables, the median and first and third quartiles (Q1–Q3) are given.
†Calculated using the modification of diet in renal disease (MDRD) equation: eGFR, estimated glomerular filtration rate (mL/min/1.73 m2)=175×(Scr)−1.154×(Age)−0.203×(0.742 if female).
NT$, New Taiwan dollar.