Table 3. Estimated Rates of Health Care Utilization and RRs of Reporting for UC and ED Visits and Hospitalizations Over 12 Months by Groupa.
| Type of health care use | Overall | Los Angeles, CA | Rochester, NY | West Palm Beach, FL | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Group | RR (95% CI) | Group | RR (95% CI) | Group | RR (95% CI) | Group | RR (95% CI) | |||||
| SCS (n = 224) | P2P (n = 213) | SCS (n = 38) | P2P (n = 35) | SCS (n = 97) | P2P (n = 95) | SCS (n = 89) | P2P (n = 83) | |||||
| UC visit | 0.16 (0.11-0.22) | 0.12 (0.08-0.19) | 0.79 (0.47-1.32) | 0.35 (0.24-0.51) | 0.16 (0.08-0.32) | 0.46 (0.21-1.01) | 0.08 (0.04-0.16) | 0.08 (0.04-0.19) | 1.03 (0.36-2.97) | 0.13 (0.07-0.26) | 0.12 (0.05-0.25) | 0.87 (0.32-2.41) |
| ED visit | 0.28 (0.23-0.34) | 0.27 (0.22-0.35) | 0.98 (0.73-1.31) | 0.36 (0.24-0.54) | 0.26 (0.14-0.48) | 0.73 (0.35-1.51) | 0.38 (0.30-0.48) | 0.34 (0.25-0.47) | 0.90 (0.60-1.35) | 0.15 (0.10-0.23) | 0.22 (0.15-0.31) | 1.40 (0.82-2.40) |
| Hospitalization | 0.44 (0.36-0.54) | 0.68 (0.54-0.85) | 1.54 (1.14-2.07)b | 0.49 (0.30-0.79) | 0.52 (0.28-0.96) | 1.07 (0.49-2.34) | 0.35 (0.25-0.49) | 0.61 (0.42-0.88) | 1.73 (1.05-2.85)b | 0.53 (0.39-0.71) | 0.83 (0.62-1.12) | 1.57 (1.03-2.40)b |
| Primary composite measure | 0.91 (0.78-1.06) | 1.10 (0.92-1.31) | 1.21 (0.97-1.52) | 1.20 (0.78-1.86) | 0.92 (0.51-1.63) | 0.76 (0.37-1.57) | 0.81 (0.65-1.00) | 1.02 (0.79-1.32) | 1.26 (0.90-1.77) | 0.81 (0.65-1.02) | 1.16 (0.93-1.45) | 1.43 (1.04-1.96)b |
Abbreviations: ED, emergency department; P2P, peer-to-peer per group; RR, risk ratio; SCS, standard community services; UC, urgent care.
a
Rates were estimated using negative binomial regression analysis with inverse propensity score weighting.
b
P < .05.