Table 5.
Multiple regression model out-of-pocket costs by age category (under 65 vs. 65 and over), income, and burden category (high vs. low)
| Dependent variable: | Out-of-pocket costs (OOPC) | |||
|---|---|---|---|---|
| Variable | Coefficient (SE) | Beta | 95% confidence interval | P value |
| Age > 65 years | -$139.86 (108.93) | 1.28 | -$30.93, $248.79 | P > 0.1 NS |
| Income | ||||
| < $20,000 | -$517.35 (215.69) | 2.40 | -$301.66, $733.04 | P < 0.05 |
| $20,000–$39,999 | -$380.48 (166.58) | 2.28 | -$213.90, $547.07 | P < 0.05 |
| $40,000–$59,999 | -$133.25 (162.84) | 0.82 | -$296.08, $29.57 | P > 0.1 NS |
| $60,000–$79,999 | -$264.73 (164.73) | 1.61 | -$429.45, $100.00 | P > 0.1 NS |
| $80,000–$99,999 | $6.54 (165.21) | 0.04 | -$158.68, $171.75 | P > 0.1 NS |
| High burden | $766.56 (117.40) | 6.53 | $649.16, $883.96 | P < 0.01 |
| Constant | $510.53 (113.37) | 4.50 | $397.16, $623.90 | P < 0.01 |
Observations 827
R2 0.064
Adjusted R2 0.056
Residual Std. error 1490.401 (df = 819)
F Statistic 7.978 (df = 7; 819) p < 0.01
“$100,000+” is income reference, “small burden” is burden reference, “Under 65” is age reference. Hypotheses: Lower OOPC patient 65 years and over; higher income patients higher OOPC; higher burden patients higher OOPC
Standardized beta = coefficient/SE; 74 pts. income was “do not know” (n = 73) or “missing” (n = 1)