Table 2.
Rate ratios for respiratory diseases associated with each interquartile range increase in PM2.5 concentration in different age group in Lima province, Peru, 2011–2015a
| Health center outpatients visits | n | RR | IC 95% | p-value | |
|---|---|---|---|---|---|
| All ALRI < 5 yr | 2654.699 | 1.06 | 1.04 | 1.07 | < 0.001 |
| ALRI < 2 mths | 136.173 | 1.06 | 1.04 | 1.09 | 0.01 |
| ALRI 2 mths- < 1 yr | 780.733 | 1.06 | 1.04 | 1.07 | 0.00 |
| ALRI 1- < 5 years | 1737.79 | 1.06 | 1.05 | 1.08 | < 0.001 |
| All Pneu < 5 yr | 18.667 | 1.17 | 1.11 | 1.23 | < 0.001 |
| PNEU 2-11 mths | 6.444 | 1.19 | 1.10 | 1.28 | 0.02 |
| PNEU 1- < 5 years | 12.223 | 1.16 | 1.09 | 1.22 | < 0.001 |
| All Asthma < 5 yr | 426.072 | 1.10 | 1.08 | 1.12 | < 0.001 |
| Acute bronchiolitis/ Asthma < 2 years | 242.657 | 1.10 | 1.08 | 1.13 | < 0.001 |
| Acute bronchiolitis/ Asthma 2- < 5 years | 183.415 | 1.11 | 1.08 | 1.13 | < 0.001 |
aALRI acute lower respiratory infections, PNEU pneumonia, RR rate ratio, CI confidence interval. Negative binomial Model adjusted by temperature, relative humidity, season, year and districts. Average district-level PM2.5 during the same week (lag 0) was used as exposure