N = 255,141 | n | % | |
---|---|---|---|
Gender | Boys | 131,696 | 51.6 |
Age, years | mean, SDa | 6.43 | 3.38 |
3–6 | 133,612 | 52.4 | |
7–12 | 103,217 | 40.5 | |
> 12 | 18,312 | 7.18 | |
Monthly income (NTD)b | < 14,999 | 213,695 | 83.8 |
15,000 − 19,999 | 31,229 | 12.2 | |
≥ 20,000 | 10,217 | 4.00 | |
Urbanization level | 1 (highest) | 84,887 | 33.3 |
2 | 81,626 | 32.0 | |
3 | 48,375 | 19.0 | |
4 (lowest) | 40,253 | 15.8 | |
Exposure | |||
SO2 level (daily average) | mean, SD | 5.59 | 2.42 |
THC level (daily average) | mean, SD | 2.42 | 0.23 |
CH4 level (daily average) | mean, SD | 2.03 | 0.13 |
Participant follow-up years | mean, SD | 10.8 | 2.78 |
Outcome | |||
Nephrotic syndrome | 264 | 0.10 |