Table 3.

Initial FEV1% and lung strain metrics of CT chest stratified by initial disease state

NIH-BOS (n = 47)Early BOS (n = 13)Mixed BOS (n = 6)Transient impairment (n = 8)Control (n = 10)P value 
FEV1 % month 0, mean (SD) 51.45 (12.32) 77.23 (9.99) 70.67 (8.04) 84.50 (5.13) 90.30 (11.54) <.001 
Normal lung %, mean (SD) 53.78 (23.47) 73.51 (12.47) 59.92 (21.28) 88.95 (6.34) 87.11 (11.87) <.001 
Air trapping %, mean (SD) 36.80 (17.61) 22.95 (12.71) 32.42 (18.71) 9.59 (5.04) 11.14 (9.90) <.001 
Jacobian, mean (SD) 1.62 (0.31) 1.92 (0.44) 1.61 (0.29) 2.29 (0.24) 2.29 (0.44) <.001 
JacobianSD, mean (SD) 0.32 (0.17) 0.47 (0.23) 0.35 (0.19) 0.71 (0.17) 0.69 (0.26) <.001 
ADI, mean (SD) 0.30 (0.11) 0.38 (0.13) 0.30 (0.08) 0.55 (0.13) 0.51 (0.17) <.001 
ADISD, mean (SD) 0.16 (0.06) 0.20 (0.08) 0.17 (0.05) 0.32 (0.07) 0.28 (0.09) <.001 
NIH-BOS (n = 47)Early BOS (n = 13)Mixed BOS (n = 6)Transient impairment (n = 8)Control (n = 10)P value 
FEV1 % month 0, mean (SD) 51.45 (12.32) 77.23 (9.99) 70.67 (8.04) 84.50 (5.13) 90.30 (11.54) <.001 
Normal lung %, mean (SD) 53.78 (23.47) 73.51 (12.47) 59.92 (21.28) 88.95 (6.34) 87.11 (11.87) <.001 
Air trapping %, mean (SD) 36.80 (17.61) 22.95 (12.71) 32.42 (18.71) 9.59 (5.04) 11.14 (9.90) <.001 
Jacobian, mean (SD) 1.62 (0.31) 1.92 (0.44) 1.61 (0.29) 2.29 (0.24) 2.29 (0.44) <.001 
JacobianSD, mean (SD) 0.32 (0.17) 0.47 (0.23) 0.35 (0.19) 0.71 (0.17) 0.69 (0.26) <.001 
ADI, mean (SD) 0.30 (0.11) 0.38 (0.13) 0.30 (0.08) 0.55 (0.13) 0.51 (0.17) <.001 
ADISD, mean (SD) 0.16 (0.06) 0.20 (0.08) 0.17 (0.05) 0.32 (0.07) 0.28 (0.09) <.001 

Each value is reported by mean and SD.

Kruskal-Wallis test was used for group-wise statistical significance.

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