Table 2.
Risk ratio (95% confidence interval) of lag effects for single days and cumulative lag effects per 10 µg/m3 increase in PM2.5 concentration.
| Lag Day | Single Day Effect | Cumulative Effect |
|---|---|---|
| Lag 0 | 1.0001 (0.9978, 1.0024) | 1.0001 (0.9978, 1.0024) |
| Lag 1 | 1.0005 (1.0000, 1.0029) | 1.0016 (0.9980, 1.0051) |
| Lag 2 | 1.0019 (1.0004, 1.0033) | 1.0035 (0.9990, 1.0080) |
| Lag 3 | 1.0017 (1.0003, 1.0032) | 1.0052 (0.9997, 1.0108) |
| Lag 4 | 1.0012 (0.9997, 1.0027) | 1.0065 (0.9998, 1.0132) |
| Lag 5 | 1.0006 (0.9990, 1.0021) | 1.0070 (0.9991, 1.0150) |
| Lag 6 | 1.0000 (0.9983, 1.0016) | 1.0070 (0.9978, 1.0164) |
| Lag 7 | 0.9995 (0.9978, 1.0013) | 1.0066 (0.9959, 1.0174) |
| Lag 8 | 0.9993 (0.9975, 1.0012) | 1.0059 (0.9937, 1.0182) |
| Lag 9 | 0.9994 (0.9978, 1.0012) | 1.0053 (0.9916, 1.0192) |
| Lag 10 | 0.9997 (0.9979, 1.0015) | 1.0050 (0.9898, 1.0204) |
| Lag 11 | 1.0002 (0.9983, 1.0020) | 1.0051 (0.9884, 1.0221) |
| Lag 12 | 1.0007 (0.9989, 1.0025) | 1.0058 (0.9877, 1.0243) |
| Lag 13 | 1.0011 (0.9993, 1.0029) | 1.0070 (0.9874, 1.0268) |
| Lag 14 | 1.0013 (0.9995, 1.0031) | 1.0082 (0.9873, 1.0296) |
| Lag 15 | 1.0008 (0.9983, 1.0033) | 1.0091 (0.9866, 1.0320) |
Bold items, variables with statistical significance (P-value <0.05).