Table 4.
Outcome stratified by ferritin levels at admission, percentage change over 48 h and etiology.
| Stratification | Total | Survivors | Non-survivors | P-value |
|---|---|---|---|---|
| Stratification by etiology, Ferritin μg/L | ||||
| Dengue | 1,913 (621, 5,410) | 2,407 (569, 6,173) | 1,235 (697, 4,478) | 0.82 |
| Scrub typhus | 674 (362, 2,892) | 665 (360, 2,810) | 2,231 (418, 6,514) | 0.44 |
| Dengue and scrub typhus | 661 (459, 1,514) | 669 (378, 1,571) | - | 0.38 |
| Malaria | 619 (310, 2,131) | 500 (232, 1,685) | 3,514 (1,212, 4,116) | 0.14 |
| Enteric fever | 436 (378, 1,457) | 557 (416, 1,485) | - | 0.13 |
| No specific diagnosis | 818 (330, 3,698) | 811 (260, 3,356) | 1,077 (409, 8,239) | 0.23 |
| Stratification by admission ferritin, n (%) | ||||
| Stratum 1 (n = 183) | 183 | 148 | 35 | |
| ≤500 | 59 (32.2) | 49 (33.1) | 10 (28.6) | 0.61 |
| >500 | 124 (67.8) | 99 (66.9) | 25 (71.4) | |
| Stratum 2 (n = 183) | 183 | 148 | 35 | |
| ≤500 | 59 (32.2) | 49 (33.1) | 10 (28.6) | 0.83 |
| 501–3,000 | 78 (42.7) | 63 (42.6) | 15 (42.8) | |
| >3,000 | 46 (25.1) | 36 (24.3) | 10 (28.6) | |
| Stratum 3 (n = 183) | 183 | 148 | 35 | |
| ≤300 | 34 (18.6) | 29 (19.6) | 5 (14.3) | 0.78 |
| 301–1,000 | 62 (33.9) | 51 (34.5) | 11 (31.4) | |
| 1,001–3,000 | 41 (22.4) | 32 (21.6) | 9 (25.7) | |
| 3,001–10,000 | 24 (13.1) | 20 (13.5) | 4 (11.4) | |
| >10,001 | 22 (12.0) | 16 (10.8) | 6 (17.2) | |
| Stratification by percentage change on serial measurement, n (%) | 120 | 99 | 21 | |
| Any percent increase from day 1 | 17 (14.2) | 15 (15.2) | 2 (9.6) | 0.75 |
| Percent decrease 0–25% | 23 (19.2) | 18 (18.2) | 5 (23.8) | |
| Percent decrease 26–50% | 25 (20.8) | 21 (21.2) | 4 (19) | |
| Percent decrease >50% | 55 (45.8) | 45 (45.4) | 10 (47.6) | |
All values expressed as Median (IQR).