Table 2.

Linear regression models for prediction of forced expiratory volume in 1 s (FEV₁) prior to haematopoietic cell transplantation using thoracic (T4) or lumbar (L3) data

Linear Regression Models	B	SE B	β	t	P‐value
FEV1
Thoracic (n = 296)
Intercept	81.706	9.742		8.387	0.000
Sex (male vs. female)	−5.424	1.639	−0.177	−3.310	0.001
Age	0.204	0.057	0.162	3.594	0.000
Disease risk index	−0.149	0.965	−0.007	−0.155	0.877
HCT‐CI	−0.936	0.360	−0.117	−2.602	0.010
KPS	−0.049	0.082	−0.026	−0.602	0.548
Skeletal muscle index	0.135	0.059	0.127	2.282	0.023
Skeletal muscle radiodensity	0.296	0.106	0.132	2.786	0.006
COPD	−12.010	0.942	−0.573	−12.751	0.000
R 2	0.492
Lumbar (n = 215)
Intercept	74.739	11.237		6.651	0.000
Sex (male vs. female)	−6.064	1.928	−0.195	−3.145	0.002
Age	0.285	0.072	0.218	3.950	0.000
Disease risk index	1.191	1.169	0.051	1.019	0.309
HCT‐CI	−1.748	0.431	−0.208	−4.052	0.000
KPS	0.005	0.094	0.003	0.058	0.954
Skeletal muscle index	0.244	0.101	0.153	2.423	0.016
Skeletal muscle radiodensity	0.199	0.123	0.093	1.621	0.106
COPD	−11.989	1.188	−0.536	−10.094	0.000
R 2	0.516

COPD, chronic obstructive pulmonary disease, defined by spirometry ²² ; HCT‐CI, haematopoietic cell transplantation‐specific co‐morbidity index; KPS, Karnofsky performance status; SE, standard error.