Indirect cost calculations by Method #1 (difference between patient self-report of expected versus actual productivity) and Method #2 (difference between time worked by matched general population versus actual patient productivity)
| SDI | IDC Method #1 Mean (95% CI) | IDC Method #2 Mean (95% CI) | Difference between Method #1 and #2 Mean (95% CI) |
|---|---|---|---|
| 0 | $17 109 ($13,021, $21,197) | $19 326 ($14,936, $23, 717) | $22171
($−3782, $8216) |
| 1 | $19 937 ($16,158, $23,715) | $25 963 ($21,764, $30,163) | $60272
($378, $11,676) |
| 2 | $22 825 ($18,479, $27,171) | $31 733 ($27,401, $36,064) | $8908 ($2772, $15,044) |
| 3 | $19 398 ($13,992, $24,804) | $30 022 ($23,682, $36, 362) | $10 624 ($2293, $18,956) |
| 4 | $26 159 ($19,195, $33,124) | $37 712 ($29,819, $45,605) | $11 553 ($1027, $22,079) |
| ≥5 | $25 265 ($19,647, $30,883) | $41 220 ($35,456, $46,984) | $15,9551,2
($7906, $24,004) |
1The difference between the between method difference at SDI≥5 and SDI=0 is $13 738 (95% CI, $3700, $23,777).2The difference between the between method difference at SDI≥5 and SDI=1 is $9928 (95% CI, $95, $19,762).