| Before adjustment | After adjustment1 | ||||
---|---|---|---|---|---|---|
Variables | Low level model | High level model | High level minus low level model mean difference (95% CI) | p value | High level minus low level model mean difference (95% CI) | p value |
Proportion of depression-free days (mean) | 0.55 | 0.51 | -0.04 (-0.17 to 0.09) | 0.54 | -0.05 (-0.15 to 0.05) | 0.31 |
Medicare out-of-hospital costs | $1502 | $2039 | $537 (165 to 909) | 0.005 | $33 (-270 to 337) | 0.83 |
Total pharmaceutical2 costs | $1185 | $1389 | $204 (-340 to 749) | 0.46 | $147 (-161 to 456) | 0.35 |
Total depression-related pharmaceutical costs3 | $156 | $171 | $14 (-50 to 79) | 0.65 | $41 (-7 to 89) | 0.09 |
Total hospital costs | $1964 | $1525 | -$439 (-1513 to 636) | 0.42 | $181 (-742 to 1103) | 0.70 |
Total depression-related hospital costs | $92 | $164 | $72 (-206 to 351) | 0.61 | --- | --- |
Total costs | $4652 | $4954 | $302 (-1155 to 1760) | 0.68 | $574 (-487 to 1635) | 0.29 |
Total depression-related costs4 | $1750 | $2374 | $624 (150 to 1098) | 0.01 | $135 (-315 to 584) | 0.56 |