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. Author manuscript; available in PMC: 2016 Aug 2.
Published in final edited form as: Biol Blood Marrow Transplant. 2015 Feb 14;21(6):1127–1131. doi: 10.1016/j.bbmt.2015.02.006

Table 2.

Associations with BOS

Risk Factor HR P
Age .99 .69
Sex
 Male 1.00 (ref) .61
 Female 1.21
Stem cell source
 Bone marrow 1.00 (ref) .87
 Peripheral blood 1.14
Myeloablative, busulfan 1.43 .38
TBI .48 .3
Previous tobacco use .98 .97
Previous lung disease 4.05 .001
Grades III–IV acute GVHD 1.93 .14