Table 2.
Descriptive Statistics and Test Statistics for Differences Between Intervention and Control Groups on Satisfaction With Medical Care, Utilization of Care, and Cost of Medical Care
| CHA | Control | Total | Statistic | P | |
|---|---|---|---|---|---|
| Satisfaction | |||||
| Baseline (n = 293), mean (SD) | 68.08 (20.3) | 71.68 (20.7) | 69.79 (20.6) | t = −1.50 | .14 |
| Six-month follow-up (n = 253), mean (SD) | 80.05(19.0) | 74.37 (21.4) | 77.38 (20.3) | t = 2.24 | .03 |
| Change in score (n = 250), mean (SD) | 10.91 (21.9) | 1.93 (22.4) | 6.67 (22.5) | t = 3.21 | <.01 |
| Inpatient utilization, n (%) | χ2 = 4.56 | .02 | |||
| Never | 116 (74.4) | 88 (62.9) | 204 (68.9) | ||
| Once or more | 40 (25.6) | 52 (37.1) | 92 (31.1) | ||
| ED utilization, n (%) | χ2 = 1.09 | .19 | |||
| Never | 130 (83.3) | 110 (78.6) | 240 (81.1) | ||
| Once or more | 26 (16.7) | 30 (21.4) | 56 (18.9) | ||
| Physician office visits, mean (SD) | 6.87 (4.38) | 7.09 (4.21) | 6.97 (4.30) | t = .45 | .65 |
| Total costs, mean (SD), $ | 7328.86 (12,735.88) | 9374.78 (16,683.98) | 8299.81 (14,751.74) | U = 2.51 | .01 |
| Range, $ | 133–88,509 | 0–85,962 | 0–88,509 |
CHA indicates Choices for Healthy Aging; ED, emergency department; SD, standard deviation.