Table 4.
Comparison of time-updated PM2.5 and PM10 concentrations from diagnosis to last follow-up or death.
| Summary statistics | Total (n = 4,514) |
Survived (n = 1,268) |
Deceased (n = 3,246) |
p-value |
|---|---|---|---|---|
| Number of pollutant records* (PM2.5 and PM10) | 19,732 | 6,860 | 12,872 | – |
| Time-updated PM2.5 (μg/m3) | ||||
| Mean (SD) | 36.9 (8.0) | 35.5 (7.0) | 37.7 (8.4) | <0.001 |
| Median (IQR) | 36.6 (32.5–39.5) | 35.2 (31.0–38.7) | 37.0 (33.1–40.4) | <0.001 |
| Time-updated PM10 (μg/m3) | ||||
| Mean (SD) | 51.4 (11.0) | 49.5 (9.6) | 52.4 (11.6) | <0.001 |
| Median (IQR) | 50.9 (45.3–55.0) | 49.0 (43.2–53.9) | 51.7 (46.2–56.1) | <0.001 |
*PM concentrations were modeled as annually updated averages from diagnosis until death or last follow-up. p-values were obtained from independent-sample t-tests or Mann–Whitney U tests where appropriate. Units: μg/m3 values are presented as the median (IQR) or the mean ± SD where appropriate.