Table 3.
Correlation between air pollutants and outpatient visits for dry eye disease, and effect modification assessed through stratified analyses by patient characteristics.
| Characteristics | PM2.5 | PM10 | CO | SO2 | NO2 | O3 |
|---|---|---|---|---|---|---|
| Gender | ||||||
| Male | 1.0007(1.0001–1.0013) | 1.0012(1.0008–1.0016) | 1.1957(1.1168–1.2801) | 1.0038(1.0017–1.0059) | 1.0039(1.0020–1.0058) | 1.0010(0.9999–1.0021) |
| Female | 0.9997(0.9991–1.0003) | 1.0007(1.0003–1.0010) | 1.1067(1.0436–1.1737) | 0.9999(0.9981–1.0018) | 1.0013(0.9997–1.0029) | 0.9999(0.9990–1.0008) |
| Age (years) | ||||||
| 0–18 | 0.9986(0.9972–1.0001) | 0.9991(0.9983–1.0001) | 1.2710(1.1134–1.4508) | 0.9984(0.9940–1.0028) | 0.9986(0.9947–1.0025) | 1.0016(0.9994–1.0039) |
| 19–59 | 1.0005(1.0000–1.0011) | 1.0009(1.0005–1.0012) | 1.0948(1.0351–1.1578) | 1.0006(0.9989–1.0023) | 1.0015(0.9999–1.0031) | 1.0006(0.9997–1.0015) |
| 60- | 0.9997(0.9990–1.0004) | 1.0009(1.0004–1.0013) | 1.1402(1.0645–1.2213) | 1.0020(0.9998–1.0042) | 1.0032(1.0014–1.0050) | 1.0003(0.9993–1.0012) |
| Season | ||||||
| Warm season | 1.0011(0.9997–1.0025) | 1.0007(1.0002–1.0013) | 1.1995(1.0499–1.3704) | 0.9984(0.9935–1.0033) | 0.9994(0.9967–1.0023) | 1.0011(0.9999–1.0020) |
| Cold season | 1.0002(0.9995–1.0008) | 1.0010(1.0005–1.0015) | 1.1311(1.0578–1.2095) | 1.0032(1.0009–1.0056) | 1.0021(1.0001–1.0041) | 0.9985(0.9968–1.0002) |