Table 3 Healthcare resource use and costs in years 1 and 2 in inverse probability of treatment weighted cohort, by adherence group.
Adherence | Pairwise P-valuea | |||||
|---|---|---|---|---|---|---|
Adherent n = 61,171 | Intermediate n = 67,938 | Non-adherent n = 44,582 | A-I | A-N | I-N | |
Year 1 HCRU, mean n (SD) | ||||||
Physician visits | 11.50 (11.98) | 11.87 (12.12) | 11.2 (11.6) | <0.001 | <0.001 | <0.001 |
All-cause emergency room visits | 0.55 (1.77) | 0.62 (1.68) | 0.69 (1.78) | <0.001 | <0.001 | <0.001 |
All-cause hospitalizations | 0.10 (0.44) | 0.13 (0.53) | 0.14 (0.56) | <0.001 | <0.001 | <0.001 |
Year 1 costs, mean (SD) $ US | ||||||
Total (including OSA equipment) | 11,332 (21,160) | 11,947 (19,325) | 11,927 (20,212) | 0.005 | <0.001 | <0.001 |
Total (excluding OSA equipment) | 10,223 (21,126) | 10,957 (19,285) | 11,214 (20,186) | <0.001 | <0.001 | 0.969 |
Inpatient hospitalizations | 1384 (7,022) | 1854 (8902) | 2116 (9723) | <0.001 | <0.001 | <0.001 |
Emergency room visits | 536 (2236) | 608 (1794) | 677 (1852) | <0.001 | <0.001 | <0.001 |
Year 2 HCRU, mean n (SD) | ||||||
Physician visits | 9.92 (10.75) | 10.17 (11.13) | 9.87 (10.76) | 0.022 | 0.01 | <0.001 |
All-cause emergency room visits | 0.497 (1.51) | 0.59 (1.60) | 0.65 (1.69) | <0.001 | <0.001 | <0.001 |
All-cause hospitalizations | 0.09 ± 0.40 | 0.13 (0.53) | 0.13 (0.56) | <0.001 | <0.001 | 0.017 |
Year 2 costs, mean (SD) $US | ||||||
Total (including OSA equipment) | 10,531 (19,106) | 11,437 (21,383) | 11,226 (21,706) | 0.987 | <0.001 | <0.001 |
Total (excluding OSA equipment) | 10,092 (19,056) | 11,159 (21,319) | 11,115 (21,665) | <0.001 | <0.001 | 0.879 |
Inpatient hospitalizations | 1239 (6658) | 1886 (9118) | 1984 (9436) | <0.001 | <0.001 | 0.018 |
Emergency room visits | 503 (1935) | 594 (1779) | 649 (1802) | <0.001 | <0.001 | <0.001 |
