Table 2.
Intrasubject reliability for maximal expiratory flow–volume curve concavity scores
| Curve Set | All Respondents | Experience |
||
|---|---|---|---|---|
| <5 yr | 5–10 yr | >10 yr | ||
| A | −0.1868 (–0.5508, 0.1773) | −0.2944 (–0.4334, 1.0223) | 0.0905 (–0.4842, 0.6651) | −0.1592 (–0.8377, 0.5194) |
| B | 0.0494 (–0.3788, 0.4777) | −0.1333 (–0.753, 1.020) | 0.1688 (–0.2227, 0.5602) | −0.4250 (–0.9795, 0.1295) |
| C | −0.2353 (–0.5941, 0.1236) | −0.333 (–1.203, 0.5367) | −0.4143 (–1.0942, 0.2657) | −0.1286 (–0.6411, 0.384) |
Numbers shown represent intrasubject test–retest bias (and 95% confidence interval) for each of three duplicated curve sets, for all respondents and stratified by experience level. Bias was nonsignificant (confidence intervals include 0) for all curves and subgroups.