Table 3. Multivariate regression on diffusing capacity of carbon monoxide (DLCO) value outcome reporting coefficients (95% CIs).
| Indigenous Australian | Australian Caucasians | |||
|---|---|---|---|---|
| Beta (95% CIs) | p-value | Beta (95% CIs) | p-value | |
| Sex (Female reference) | 0.79 (-1.35, 2.92) | 0.466 | 5.06 (3.32, 6.79) | <0.01 |
| Age (years) | -0.16 (-0.22, -0.09) | <0.001 | -0.21 (-0.27, -0.15) | <0.01 |
| Height (cm) | 0.21 (0.09, 0.35) | 0.001 | 0.15 (0.06, 0.25) | <0.01 |
| Weight (kg) | 0.1 (0.06, 0.14) | <0.001 | 0.05 (0.02, 0.08) | <0.01 |
| Former smoker (non-smoker reference) | -2.21 (-4.6, 0.19) | 0.071 | -0.23 (-1.66, 1.2) | 0.75 |
| Current smoker (non-smoker reference) | -2.04 (-4.16, 0.08) | 0.059 | -3.21 (-4.95, -1.46) | <0.01 |
| Model R2 & p-value | 0.515 | <0.001 | 0.584 | <0.01 |
Data were expressed as means (95% confidence interval).
R2: adjusted form of Pearson’s product moment correlation coefficient.
Values fit within the ’Moderate’ correlation range (0.5–0.7).