| Asthma | LRIs | ||
---|---|---|---|---|
ED Visits | Hospitalizations | ED Visits | Hospitalizations | |
Risk factors | IRR (95% CI) | IRR (95% CI) | IRR (95% CI) | IRR (95% CI) |
Simple analyses | ||||
 Lower SES | 1.35 (1.26–1.46)*** | 1.47 (1.30–1.67)*** | 1.11 (1.09–1.13)*** | 1.44 (1.33–1.56)*** |
 Increased air pollution | 1.33 (1.24–1.42)*** | 1.16 (1.03–1.31)* | 1.03 (1.02–1.04)*** | 1.16 (1.08–1.25)*** |
 Mobile homes (%) | 1.03 (0.99–1.07) | 1.10 (1.03–1.17)** | 1.05 (1.03–1.07)*** | 1.10 (1.06–1.15)*** |
 Attached homes (%) | 1.09 (1.05–1.13)*** | 1.03 (0.97–1.10) | 1.07 (1.05–1.09)*** | 1.05 (1.01–1.10)** |
 Home gas heating (%) | 0.89 (0.83–0.95)*** | 1.16 (1.02–1.32)* | 0.99 (0.96–1.03) | 1.14 (1.05–1.23)** |
 Lacking complete plumbing (%) | 1.06 (0.99–1.12) | 1.16 (1.05–1.29)** | 1.07 (1.03–1.10)*** | 1.20 (1.12–1.29)*** |
 Built before 1940 (%) | 1.12 (1.08–1.17)*** | 1.05 (0.98–1.14) | 1.09 (1.06–1.11)*** | 1.11 (1.06–1.17)*** |
  > 1 person per room (%) | 1.21 (1.15–1.26)*** | 1.25 (1.16–1.34)*** | 1.12 (1.10–1.14)*** | 1.22 (1.17–1.28)*** |
 Population density (persons/sq. mile) | 1.20 (1.12–1.30)*** | 0.91 (0.80–1.04) | 1.05 (1.01–1.08)* | 0.80 (0.73–0.87)*** |
 In Pima County   (Ref: Maricopa County) | 0.66 (0.54–0.80)*** | 0.83 (0.60–1.14) | 0.92 (0.85–1.01) | 0.80 (0.66–0.98)* |
Multiple analysis | ||||
 Lower SES | 1.15 (0.99–1.33) | 1.57 (1.24–1.97)*** | 1.21 (1.13–1.28)*** | 1.52 (1.32–1.76)*** |
 Increased air pollution | 1.05 (0.93–1.19) | 0.87 (0.72–1.05) | 1.12 (1.06–1.19)*** | 0.90 (0.79–1.01) |
 Mobile homes (%) | 1.01 (0.97–1.05) | 1.03 (0.97–1.10) | 1.03 (1.01–1.05)** | 1.04 (1.01–1.08)* |
 Attached homes (%) | 1.01 (0.96–1.05) | 1.02 (0.95–1.09) | 1.04 (1.02–1.06)*** | 1.04 (1.00–1.08) |
 Home gas heating (%) | 0.91 (0.84–0.98)** | 1.18 (1.03–1.35)* | 0.98 (0.95–1.02) | 1.11 (1.03–1.2)** |
 Lacking complete plumbing (%) | 1.02 (0.96–1.08) | 1.07 (0.97–1.19) | 1.01 (0.98–1.04) | 1.09 (1.02–1.16)* |
 Built before 1940 (%) | 1.07 (1.02–1.13)** | 0.93 (0.86–1.01) | 1.02 (0.99–1.04) | 0.97 (0.92–1.02) |
  > 1 person per room (%) | 1.06 (0.97–1.15) | 1.07 (0.94–1.22) | 0.99 (0.96–1.02) | 1.05 (0.97–1.13) |
 Population density (persons/sq. mile) | 1.01 (0.88–1.15) | 0.55 (0.45–0.67)*** | 0.94 (0.89–1.00)* | 0.50 (0.45–0.57)*** |
 In Pima County   (Ref: Maricopa County) | 0.77 (0.59–1.01) | 0.47 (0.31–0.73)*** | 1.07 (0.95–1.21) | 0.48 (0.38–0.62)*** |