Table 3.
RRsa (95% CIs) of ectopy counts associated with a 10-μg/m3 increment of PM2.5 concentration from individual lags.
| Table 3. RRsa (95% CIs) of ectopy counts associated with a 10-μg/m3 increment of PM2.5 concentration from individual lags. | ||||||
| Lag | PVC | PAC | Total ectopy | |||
| Lag 0 | 1.02 (1.00–1.04) | 1.00 (0.97–1.01) | 1.02 (1.00–1.03) | |||
| Lag 1 | 1.00 (1.00–1.01) | 0.99 (0.97–1.01) | 1.00 (1.00–1.01) | |||
| Lag 2 | 0.99 (0.98–1.00) | 0.98 (0.96–1.01) | 0.99 (0.98–1.00) | |||
| Lag 3 | 0.98 (0.96–1.00) | 0.98 (0.96–1.00) | 0.98 (0.97–1.00) | |||
| Lag 4 | 0.98 (0.95–1.00) | 0.98 (0.96–1.00) | 0.98 (0.96–1.00) | |||
| Lag 5 | 0.98 (0.95–1.00) | 0.98 (0.96–1.00) | 0.98 (0.95–1.00) | |||
| Lag 6 | 0.98 (0.95–1.01) | 0.98 (0.97–1.00) | 0.98 (0.96–1.00) | |||
| Lag 7 | 0.99 (0.96–1.02) | 0.99 (0.97–1.01) | 0.98 (0.96–1.01) | |||
| Lag 8 | 1.00 (0.97–1.03) | 0.99 (0.98–1.01) | 0.99 (0.97–1.01) | |||
| Lag 9 | 1.02 (0.98–1.06) | 1.00 (0.98–1.03) | 1.00 (0.99–1.03) | |||
| Lag 10 | 1.04 (0.98–1.10) | 1.01 (0.98–1.05) | 1.02 (0.99–1.06) | |||
| Cumulative | 0.98 (0.79–1.21) | 0.90 (0.74–1.09) | 0.93 (0.80–1.09) | |||
| aThe RRs were calculated by exponentiating the regression coefficients from distributed lag negative binomial regression model, adjusted for age, sex, race, chronic disease status, and the same lag period temperature and relative humidity. | ||||||