Table 3:
Multivariable Regression
PRMfSAD | PRMPD | BMI | Site (FH) | Site (KI) | |
---|---|---|---|---|---|
FEV1 (% predicted) | −0.449, 0.001 | −0.477, 0.001 | 0.585, 0.062 | ||
FVC (% predicted) | −0.552, <0.0001 | 0.711, 0.028 | 11.544, 0.027 | ||
FEV1/FVC | −0.005, <0.0001 | 0.104, 0.028 | |||
TLC (% predicted) | 0.404, 0.001 | −11.570, 0.057 | −13.737, 0.050 |
Note: Data for each cell represents the parameter coefficient and its p value. Those parameters found to be significant are bolded. Statistical significance was assessed at a p value < 0.05. The site University of Michigan (UM) serves as the reference, thus the coefficients for the other sites (FH, KI) represent the intercept relative to UM. For example, FVC% in the FH population is 11.544 higher than in the UM population. For FEV1/FVC, KI is 0.105 higher than UM. FEV1: forced expiratory volume at one second; FVC: forced vital capacity; TLC: total lung capacity, BMI: body mass index in units of kg/cm2.