Table S2.
The relative risk (RR) of cold effects on AMI hospital admissions in cold weather period by gender, age, and area.
| Cold Effect a | ||
|---|---|---|
| Lag b | RR (95% CI) | |
| Total MI | 2–3 | 1.03 (1.00–1.05) * |
| Insurance type | ||
| NHI | 2–3 | 1.03 (1.01–1.06) * |
| Medicaid | 8–14 | 1.08 (0.95–1.23) |
| Insurance premium | ||
| Low | 22–28 | 1.05 (1.01–1.10) * |
| Medium | 2–3 | 1.04 (1.00–1.09) |
| High | 2–3 | 1.04 (1.00–1.09) |
CI: Confidence interval; Models adjusted for calendar year, day of the week, precipitation, humidity, sea-level pressure, and air pollutants (PM10, O3, NO2) as spline functions and considering the annual population size as the offset variable; a Temperature decrease of 1 °C below the threshold mean temperature (−8.5 °C) in cold weather (December–February). Considering duration of cold wave in model; b Lags of 0, 1, 2–3, 4–7, 8–14, 15–21, 22–28; * p < 0.05.