Table 3

Effect of resistive loading

SIDS parents (n = 9)Controls (n = 9)Change from baseline to resistance (parents – controls)p value for differences
BeforeDuringBeforeDuring
Ti = inspiratory time, Te = expiratory time; fR = respiratory frequency; Vt = tidal volume; Ve =  minute volume.
Ti (s)1.262.561.653.95−0.870.021
(1.21, 1.71)(1.69, 2.68)(1.32, 2.04)(3.00, 4.26)(−1.75, −0.14)
Te (s)2.162.842.695.42−1.30.015
(1.70, 2.48)(2.27, 3.98)(2.23, 3.37)(3.68, 6.73)(−2.15, −0.46)
fR (breaths/min)17.911.814.46.9−0.40.374
(15.0, 21.0)(9.3, 15.8)(11.0, 17.6)(5.8, 9.1)(−2.7, 4.5)
Vt (l)0.640.660.681.090.050.953
(0.47, 0.67)(0.59, 1.04)(0.57, 0.92)(0.74, 1.30)(−0.25, 0.17)
Ve (l/min)10.008.179.137.061.020.051
(8.83, 11.05)(7.24, 12.09)(8.90, 11.5)(5.87, 7.48)(0.14, 5.51)
Vt/Ti (l/s)23.418.625.517.02.620.021
(22.8, 29.7)(15.3, 29.9)(24.1, 28.8)(13.9, 19.6)(0.17, 12.31)