Table 2.

Proportion of Day-28 deaths by cluster

		N patients			Day-28 deaths (%)			Odds ratio			p value
Cluster	Rank	T	W1	W2	T	W1	W2	W1 v T	W2 v T	W2 v W1	W1 v T	W2 v T	W2 v W1
1	13	158	18	19	20	6	21	0.2	1.0	4.4	0.20	1.00	0.34
2	4	171	41	172	8	2	2	0.3	0.3	1.0	0.31	0.03	1.00
3	27	84	3	1	44
4	26	237	32	24	43	50	42	1.3	1.0	0.7	0.45	1.00	0.60
5	3	375	83	94	5	9	5	1.9	1.2	0.6	0.17	0.78	0.55
6	17	378	5	3	30
7	19	147	0	0	33
8	28	210	21	5	49	62		1.7			0.36
9	20	125	11	10	34	64	20	3.3	0.5	0.2	0.10	0.50	0.08
10	7	175	38	83	15	10	10	0.7	0.6	0.9	0.61	0.33	1.00
11	23	240	40	9	39	45		1.3			0.49
12	12	264	42	11	20	36	18	2.2	0.9	0.4	0.03	1.00	0.47
13	8	241	34	5	19	24		1.3			0.49
14	6	188	35	34	9	17	3	2.1	0.3	0.1	0.22	0.32	0.11
15	16	151	80	120	29	39	30	1.5	1.0	0.7	0.14	0.89	0.22
16	2	156	24	35	4	8	6	2.3	1.5	0.7	0.29	0.64	1.00
17	25	548	69	35	43	36	34	0.8	0.7	0.9	0.37	0.38	1.00
18	1	316	52	66	2	6	3	3.8	1.9	0.5	0.09	0.35	0.65
19	22	175	61	25	39	34	43	0.8	1.3	1.5	0.65	0.66	0.47
20	11	131	8	8	19
21	18	136	4	1	32
22	14	235	47	74	24	26	13	1.1	0.5	0.5	0.85	0.07	0.15
23	9	170	22	7	19	27		1.6			0.39
24	29	94	46	13	65	59	54	0.8	0.6	0.8	0.58	0.54	0.76
25	5	166	29	45	8	14	11	1.9	1.5	0.8	0.29	0.55	0.73
26	10	212	28	18	19	39	17	2.8	0.9	0.3	0.02	1.00	0.19
27	21	265	36	12	38	36	16	0.9	0.3	0.4	1.00	0.22	0.29
28	15	259	61	60	25	31	12	1.4	0.4	0.3	0.33	0.04	0.01
29	24	92	26	22	40	27	18	0.6	0.3	0.6	0.26	0.08	0.51

The proportion of deaths by day 28 within each cluster in the training, wave 1 and wave 2 cohorts. Odds ratios are calculated with a Fisher’s test of significance. Clusters are ranked by the proportion of deaths observed within the training cohort.

N, number; T, training cohort; W1, wave 1 cohort; W2, wave 2 cohort.