Table 3.
Adjusted predicted means and differences in predict means from covariate-adjusted generalized linear regression models for association of USC type with annual number of inpatient stays, ED visits, and total expenses#
| Variable and USC type, weighted n | Adjusted predicted mean | 95% CI for predicted mean | Difference in predicted mean from SPP | 95% CI for difference | p-value |
|---|---|---|---|---|---|
|
| |||||
| Number of annual inpatient stays, n = 31,953,477 | |||||
| Solo practicing physician (SPP), n = 8,003,366 | 0.29 | (0.22–0.36) | |||
| Non-hospital facility, n = 6,989,757 | 0.33 | (0.25–0.41) | 0.03 | (−0.08 to 0.14) | 0.567 |
| Hospital-based facility, n = 4,286,642 | 0.36 | (0.25–0.47) | 0.08 | (−0.06 to 0.21) | 0.255 |
| A specific person in a non-hospital facility, n = 9,146,547 | 0.31 | (0.25–0.37) | 0.02 | (−0.06 to 0.10) | 0.602 |
| A specific person in a hospital-based facility, n = 3,527,165 | 0.26 | (0.17–0.36) | −0.02 | (−0.14 to 0.09) | 0.693 |
| Number of annual ED visits, n = 31,953,477 | |||||
| SPP, n = 8,003,366 | 0.32 | (0.26–0.38) | |||
| Non-hospital facility, n = 6,989,757 | 0.32 | (0.25–0.38) | −0.01 | (−0.10 to 0.08) | 0.848 |
| Hospital-based facility, n = 4,286,642 | 0.45 | (0.34–0.56) | 0.13 * | (0.00–0.26) | 0.049 |
| A specific person in a non-hospital facility, n = 9,146,547 | 0.39 | (0.32–0.46) | 0.06 | (−0.03 to 0.15) | 0.158 |
| A specific person in a hospital-based facility, n = 3,527,165 | 0.37 | (0.26–0.49) | 0.05 | (−0.08 to 0.17) | 0.450 |
| Annual total expenses (in 2018 US dollars), n = 31,953,477 | |||||
| SPP, n = 8,003,366 | $18,320 | ($15,639–$21,000) | |||
| Non-hospital facility, n = 6,989,757 | $23,743 | ($19,781–$27,706) | $5225 * | ($557–$9892) | 0.028 |
| Hospital-based facility, n = 4,286,642 | $23,983 | ($19,724–$28,243) | $6028 * | ($1235–$10,822) | 0.014 |
| A specific person in a non-hospital facility, n = 9,146,547 | $21,392 | ($18,528–$24,255) | $3192 | ((–)$402 to $6,786) | 0.082 |
| A specific person in a hospital-based facility, n = 3,527,165 | $20,100 | ($15,023–$25,176) | $2881 | ((–)$3079 to $8841) | 0.342 |
< 0.05
< 0.01
< 0.001
USC, usual source of care; ED, emergency department; CI, confidence interval; SPP, solo practicing physician
Bolded values are significant at p < 0.05
Regression models adjusted for age, sex, race/ethnicity, family income as a % of federal poverty level, education level, insurance, geographic region, self-reported health status in round 3/1, number of comorbid conditions, cancer site, calendar year, and being in remission
Note: Sample size and regression model estimates are for the US civilian non-institutionalized population of adult cancer survivors currently experiencing cancer and having a usual source of care during 2013–2018