Measure | Total (nâ=â52) | Gestational age | ||
---|---|---|---|---|
24â28 weeks (nâ=â12) | 29â34 weeks (nâ=â40) | p-value | ||
FEV1, % | 94.3â±â14.28 | 93.00â±â16.03 | 94.71â±â13.89 | 0.721 |
FEV1, z-score | -0.39â±â1.34 | -0.60â±â1.38 | -0.32â±â1.33 | 0.547 |
FEV1â<â80%pred. | 16.0% | 25.0% | 13.2% | 0.329 |
FEV1/FVC, % | 91.18â±â11.6 | 86.08â±â12.29 | 92.79â±â11.06 | 0.081 |
FEV1/FVC, z-score | -0.88â±â1.39 | -1.53â±â1.24 | -0.68â±â1.38 | 0.062 |
FEV1/FVC z-score â€-1.646 | 28.0% | 50.0% | 21.1% | 0.052 |
MEF 25, % | 88.84â±â37.73 | 76.17â±â31.39 | 92.74â±â39.00 | 0.186 |
MEF 25, z-score | -0.53â±â1.23 | -0.93â±â1.15 | -0.41â±â1.24 | 0.199 |
MEF 50, % | 89.80â±â29.84 | 81.75â±â30.02 | 92.28â±â29.73 | 0.290 |
MEF 50, z-score | -0.54â±â1.39 | -0.92â±â1.46 | -0.43â±â1.36 | 0.284 |
MEF 75, % | 82.25â±â21.63 | 76.75â±â25.85 | 83.95â±â20.24 | 0.318 |
MEF 75, z-score | -0.83â±â1.02 | -1.10â±â1.23 | -0.75â±â0.95 | 0.311 |
PEF, % | 82.78â±â17.77 | 78.08â±â23.22 | 84.23â±â15.82 | 0.299 |
PEF z-score | -1.37â±â1.42 | -1.73â±â1.87 | -1.26â±â1.26 | 0.325 |
TLC, % | 107.40â±â10.63 | 106.27â±â9.50 | 107.72â±â11.03 | 0.695 |
TLC z-score | 0.67â±â0.95 | 0.59â±â0.80 | 0.69â±â1.00 | 0.755 |
RV, % | 122.22â±â27.03 | 116.75â±â23.74 | 123.90â±â28.04 | 0.429 |
RV z-score | 0.86â±â1.07 | 0.63â±â0.88 | 0.93â±â1.12 | 0.403 |
RV/TLC, % | 112.98â±â26.17 | 109.18â±â28.18 | 114.05â±â25.86 | 0.591 |
RV/TLC z-score | 0.58â±â1.17 | 0.40â±â1.23 | 0.64â±â1.16 | 0.558 |
FRC, % | 109.76â±â17.57 | 115.83â±â16.10 | 107.90â±â17.78 | 0.174 |
FRC z-score | 0.51â±â0.95 | 0.76â±â0.79 | 0.44â±â0.99 | 0.313 |
LCI 2.5%norm | 6.52â±â0.62 | 6.90â±â0.67 | 6.40â±â0.56 | 0.013 |
LCI 2.5%norm â„6.99 | 21.2% | 50.0% | 12.5% | 0.005 |
R5Hz | 0.35â±â0.09 | 0.36â±â0.08 | 0.35â±â0.09 | 0.965 |
R20Hz | 0.32â±â0.07 | 0.31â±â0.07 | 0.32â±â0.07 | 0.474 |
R5-R20 | 0.04â±â0.04 | 0.05â±â0.05 | 0.03â±â0.04 | 0.338 |
X5 | -0.10â±â0.05 | -0.09â±â0.08 | -0.10â±â0.03 | 0.519 |
AX | 0.33â±â0.30 | 0.36â±â0.21 | 0.33â±â0.33 | 0.236 |
Fres (IOS) | 11.86â±â4.22 | 12.76â±â3.40 | 11.59â±â4.44 | 0.405 |
FeNO | 19.34â±â14.93 | 18.45â±â11.9 | 19.59â±â15.80 | 0.826 |
FeNOâ>â25 ppb | 24.0% | 27.3% | 23.1% | 0.774 |