Table 5.
Performance of significant determinants of Medical Outcomes Study 36-Item Short Form Physical Component Summary and Mental Component Summary scores in multivariate model with Self-Administered Quality-of-Well-Being Scale* score as outcome (n = 1,617; model R2 = 0.29).
| Determinant | Adjusted Coefficient (95% CI) | p-Value |
|---|---|---|
| 6MWT Distance | 0.00017 (0.0001 to 0.0002) | <0.001 |
| UCSD SOBQ Total Score | −0.0017 (−0.0020 to −0.0014) | <0.001 |
| 6MWT Borg | −0.0029 (−0.0055 to −0.0003) | 0.03 |
| Age | 0.000072 (−0.00082 to 0.00097) | NS |
| DLCO, % Predicted | −0.00054 (−0.0011 to 0.000022) | 0.06 |
| Disabled (ref = nondisabled) | −0.011 (−0.023 to 0.00068) | 0.06 |
| Beck Total Score | −0.0050 (−0.0060 to −0.0041) | <0.001 |
| Antidepressant Use (ref = no use) | −0.014 (−0.028 to −0.00024) | 0.05 |
| Education (ref = not high school graduate) | −0.012 (−0.025 to 0.00067) | 0.06 |
| Daytime Sleepiness (ref = never sleepy during day) | −0.023 (−0.033 to −0.012) | <0.001 |
*
Higher score indicates better health status.
6MWT = 6-minute walk test; Beck = Beck Depression Inventory; Borg = Borg score for breathlessness; CI = confidence interval; DLCO = single-breath diffusing capacity of the lung for carbon monoxide; NS = nonsignificant; ref = reference; UCSD SOBQ = University of California, San Diego Shortness of Breath Questionnaire.