Table 4a. Children with malaria: Odds of death at each level of haemoglobin (Hb) in those who received transfusion versus no transfusion.

Hb level	N	Died	Not transfusion	Deaths non- transfused	Case fatality	Transfused	Deaths transfused	Case fatality	Odds ratio (95% CI)	P value
<3	169	29	38	8	21.1%	131	21	16.0%	0.72 (0.29 - 1.78)	0.471
3-3.9	366	20	62	5	8.1%	304	15	4.9%	0.59 (0.21 - 1.69)	0.328
4-4.9	552	24	250	5	2.0%	302	19	6.3%	3.29 (1.21 - 8.94)	0.02
5-5.9	657	36	479	16	3.3%	178	20	11.2%	3.66 (1.85 - 7.24)	<0.001
6-6.9	795	25	721	16	2.2%	74	9	12.2%	6.10 (2.59 - 14.35)	<0.001
7-7.9	948	20	911	17	1.9%	37	3	8.1%	4.64 (1.30 - 16.59)	0.018
8-8.9	1123	31	1,099	29	2.6%	24	2	8.3%	3.35 (0.75 - 14.94)	0.112
9-9.9	1186	34	1,169	28	2.4%	17	6	35.3%	22.23 (7.68 - 64.35)	<0.001
10-10.9	941	15	930	15	1.6%	11	0	0.00%	-
>=11	656	22	649	21	3.2%	7	1	14.3%	4.98 (0.57 - 43.27)	0.145
Total	7393	256	6308	160	2.5%	1085	96	8.8%

CI confidence interval