TABLE 4.
LOS and Economic Burden Compared Between GERD Patients Versus Non-GERD Patients
| Cost Measure | Naive Estimates
|
Propensity Score–Adjusted Estimate: Average Effect of GERD on Patients With GERD | ||
|---|---|---|---|---|
| GERD (n = 1907)
|
Non-GERD (n = 16 660)
|
Mean (GERD) – Mean (Non-GERD) | ||
| Mean ± SD | Mean ± SD | |||
| Cost of visit, $ | 202 293 ± 180 905 | 85 452 ± 117 681 | 116 841 | 70 489 |
| LOS, d | 75.5 ± 55.8 | 31.5 ± 37.8 | 44.0 | 29.9 |
| Cost/d, $ | 2598 ± 947 | 2829 ± 3751 | −231 | −556 |
a
Differences between GERD and non-GERD patients on each measure were statistically significant according to unequal variance t tests (P < .001).
b
Differences in cost and cost per day were also statistically significant in log-transformed units.