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TABLE 2

Asthma-Related ED Visit Rate per 100 Child-Years by Patient Characteristics

Asthma-Related ED Visits per 100 Child-Years, Unadjusted Rate (95% CI)Relative Rate (Unadjusted) of Asthma-Related ED Visits per 100 Child-Years (95% CI)Pa
Total population 17.1 (16.7–17.5) — — 
Mental health conditions    
 No anxiety or depression 15.2 (14.1–16.3) Reference Reference 
 Anxiety only 18.6 (16.6–20.6) 1.22 (1.10–1.35) <.001 
 Depression only 24.8 (20.7–28.8) 1.43 (1.23–1.62) <.001 
 Anxiety and depression 30.5 (27.5–33.5) 1.80 (1.60–2.00) <.001 
Age group, y    
 6–11 17.2 (15.9–18.4) Reference Reference 
 12–17 14.7 (13.5–15.9) 0.82 (0.77–0.88) <.001 
 18–21 21.9 (19.6–24.1) 1.19 (1.06–1.31) .001 
Sex    
 Male 15.9 (14.7–17.1) Reference Reference 
 Female 18.4 (17.0–19.9) 1.08 (1.01–1.15) .017 
Insurance status    
 Commercial PPO 7.0 (5.9–8.1) Reference Reference 
 Commercial HMO 9.0 (8.1–9.8) 1.30 (1.09–1.51) .002 
 Medicaid managed care 21.7 (20.3–23.1) 3.08 (2.57–3.60) <.001 
 Medicaid FFS 25.3 (22.9–27.6) 3.49 (2.87–4.11) <.001 
 Other insurer 9.5 (8.3–10.8) 1.37 (1.12–1.63) <.001 
PMCAb    
 None 15.0 (13.9–16.2) Reference Reference 
 Chronic, noncomplex 17.2 (15.9–18.6) 1.11 (1.03–1.19) .003 
 Complex chronic 23.3 (21.1–25.4) 1.41 (1.30–1.52) <.001 
Asthma-Related ED Visits per 100 Child-Years, Unadjusted Rate (95% CI)Relative Rate (Unadjusted) of Asthma-Related ED Visits per 100 Child-Years (95% CI)Pa
Total population 17.1 (16.7–17.5) — — 
Mental health conditions    
 No anxiety or depression 15.2 (14.1–16.3) Reference Reference 
 Anxiety only 18.6 (16.6–20.6) 1.22 (1.10–1.35) <.001 
 Depression only 24.8 (20.7–28.8) 1.43 (1.23–1.62) <.001 
 Anxiety and depression 30.5 (27.5–33.5) 1.80 (1.60–2.00) <.001 
Age group, y    
 6–11 17.2 (15.9–18.4) Reference Reference 
 12–17 14.7 (13.5–15.9) 0.82 (0.77–0.88) <.001 
 18–21 21.9 (19.6–24.1) 1.19 (1.06–1.31) .001 
Sex    
 Male 15.9 (14.7–17.1) Reference Reference 
 Female 18.4 (17.0–19.9) 1.08 (1.01–1.15) .017 
Insurance status    
 Commercial PPO 7.0 (5.9–8.1) Reference Reference 
 Commercial HMO 9.0 (8.1–9.8) 1.30 (1.09–1.51) .002 
 Medicaid managed care 21.7 (20.3–23.1) 3.08 (2.57–3.60) <.001 
 Medicaid FFS 25.3 (22.9–27.6) 3.49 (2.87–4.11) <.001 
 Other insurer 9.5 (8.3–10.8) 1.37 (1.12–1.63) <.001 
PMCAb    
 None 15.0 (13.9–16.2) Reference Reference 
 Chronic, noncomplex 17.2 (15.9–18.6) 1.11 (1.03–1.19) .003 
 Complex chronic 23.3 (21.1–25.4) 1.41 (1.30–1.52) <.001 

—, not applicable.

a

P for the multivariate analysis (all P in our bivariate analyses were <.005).

b

Excluding from the algorithm diagnoses of asthma, anxiety, and depression.

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