Meta-analysis results for all-age, cardiovascular and respiratory hospital admissions by WHO region
| WHO region | All* (SC/MC) | Selected† (SC/MC | RE (95% CI)‡ | I2 (%)§ |
|---|---|---|---|---|
| Cardiovascular | ||||
| AMR A | 2/0 | 1/0 | 0.00 (−2.85 to 2.93) | 0 |
| EUR A | 4/1 | 4/1 | 0.91 (0.17 to 1.66) | |
| WPR A | 1/0 | 1/0 | 1.04 (−0.30 to 2.39) | |
| Summary¶ | – | 3/1 | 0.90 (0.26 to 1.53) | |
| Respiratory | ||||
| AMR A | 1/0 | 1/0 | −2.00 (−6.00 to 2.17) | 80 |
| EUR A | 3/0 | 3/0 | 1.90 (−0.18 to 4.02) | |
| SEAR D | 1/0 | 1/0 | 0.12 (0.08 to 0.16) | |
| WPR A | 1/0 | 1/0 | 2.38 (1.04 to 3.73) | |
| Summary¶ | – | 4/0 | 0.96 (−0.63 to 2.58) | |
*Numbers of single-city(SC)/multicity (MC) estimates available from all studies.
†Numbers of single-city(SC)/multicity (MC) estimates selected for meta-analysis (see estimate selection protocol in Methods section).
‡Random effects summary estimate (95% CI) per 10 μg/m3.
§I2 statistic for heterogeneity.
¶Estimate numbers for ‘Summary’ refers to the number of pooled (from single-city estimates) and multicity estimates used to calculate the overall summary estimate across WHO regions.