. Author manuscript; available in PMC: 2009 Oct 6.

Published in final edited form as: Pediatr Blood Cancer. 2008 May;50(5):1006–1012. doi: 10.1002/pbc.21336

TABLE II.

Characteristics of Acute Chest Syndrome by Treatment (Mean ± SD)

Parameter	No Transfusion/ No CS	CS only	Transfusion only	Transfusion/CS
RR (min)	27 ± 7	31 ± 14	30 ± 13	35 ± 11^*
FIO₂ (%)	21 IQR 21–24	24 IQR 23–32^$	27 IQR 23–39^$	29 IQR 24–80^$
Involved lobes	1.3 ± 0.5	1.4 ± 0.6	1.8 ± 0.7^*	1.7 ± 0.8†
Wheezing	8%	12%	10%	36%†^©
Severe ACS	3%	12%	21%	41%^$^#
RCSS	0.8 ± 0.5	1.0 ± 0.5	1.0 ± 0.6	1.3 ± 0.5^#^%
Hemoglobin (g/L)	78 ± 18	70 ± 16	64 ± 19^%	64 ± 7^%
Bronchodilators	57%	69%	74%	95%^*

P < 0.01 compared to no transfusion/no CS

P < 0.001 compared to no transfusion/no CS

^‡

P < 0.05 compared to no transfusion/no CS

P < 0.05 compared to CS only

^©

P < 0.05 compared to transfusion only

P < 0.005 compared to no transfusion/no CS. CS indicates corticosteroid; RR, respiratory rate; FIO₂, fraction inspired oxygen; IQR, interquartile range.