Table 5.
Analysis of health care costs.
Cost (US $) | Cohorta | Difference in slopes | P valuee | ||||||||||||
|
BCBH-Db intervention, medical (N=558)c, pharmacy (N=330)d | Matched controls, medical (N=1669)c, pharmacy (N=990)d | Difference in slopes | Cohorts time 1 | Cohorts time 2 | ||||||||||
|
Pre | Post | Slope (change in cost) | Pre | Post | Slope (change in cost) | |||||||||
All-cause medical cost | |||||||||||||||
|
Inpatient | 2274 | 1406 | −868 | 2446 | 2490 | 44 | −912 | .03 | .78 | .01 | ||||
|
Emergency department | 381 | 316 | −64 | 434 | 502 | 69 | −133 | .16 | .54 | .003 | ||||
|
Outpatient | 5327 | 4040 | −1288 | 5651 | 5201 | −450 | −838 | .001 | .50 | .01 | ||||
|
Total | 7997 | 5789 | −2207 | 8551 | 8213 | −338 | −1869 | .001 | .53 | .001 | ||||
Diabetes-related medical cost | |||||||||||||||
|
Inpatient | 97 | 124 | 26 | 247 | 74 | −172 | 198 | .16 | .19 | .64 | ||||
|
Emergency department | 13 | 6 | −8 | 18 | 14 | −4 | −4 | .75 | .58 | .20 | ||||
|
Outpatient | 1437 | 1249 | −189 | 1943 | 1711 | −232 | 44 | .92 | .007 | .007 | ||||
|
Total | 1558 | 1383 | −175 | 2223 | 1808 | −415 | 240 | .58 | .005 | .04 | ||||
All-cause pharmacy cost | |||||||||||||||
|
Total | 4405 | 4264 | −141 | 4739 | 5675 | 936 | −1078 | .001 | .34 | .001 |
aAll subjects have 1 year of pretreatment time and 1 year of follow-up observation time.
bBCBH-D: Better Choices Better Health Diabetes.
cN of subjects with medical coverage.
dN of subjects with pharmacy coverage.
eAll analyses were conducted using generalized estimating equation repeated measures model with a gamma distribution and a logit link. The matched control cohort is the reference category in all analyses.