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. 2023 May 5;77(5):721–728. doi: 10.1093/cid/ciad262

Table 2.

Characteristics of Hospitalized Malaria Patients Who Did or Did Not Meet World Health Organization (2015) Broad Severe Malaria Criteria

Plasmodium vivax Plasmodium falciparum
Clinical Characteristic Patients, No. (%)a P Value Patients, No. (%)a P Value
WHO Criteria Not Met
(n = 210)
WHO Criteria Met
(n = 68)
WHO Criteria Not Met
(n = 3362)
WHO Criteria Met
(n = 1482)
Infectious diagnosis present 50 (24) 20 (29) .35 137 (4) 110 (7) <.001
Chronic disease present 4 (2) 3 (4) .25 8 (0.2) 10 (0.7) .02
Post-partum womenb 10/127 (8) 7/46 (15) .16 5/1215 (0.4) 3/599 (0.5) .72
Prostration 25 (12) 16 (24) .02 355 (11) 469 (32) <.001
Convulsionsc 0 (0) 4 (6) .003 0 (0) 33 (2) <.001
Age, y
 <1 48 (23) 8 (12) .10d 55 (2) 35 (2) <.001d
 1–5 48 (23) 16 (24) 709 (21) 447 (30)
 6–10 14 (7) 6 (9) 616 (18) 272 (18)
 11–15 8 (4) 2 (3) 473 (14) 140 (9)
 >15 92 (44) 35 (53) 1509 (45) 588 (40)
Parasitemia, geometric mean (95% CI), parasites/µL 2576 (32–46 472) 1576 (16–31 149) .12 147 606 (3768–425 030) 196 986 (2304–976 162) <.001
Duration of hospital stay, median (IQR; range) d 3 (2–4; 1–32) 2 (2–4; 1–26) .90 4 (3–6; 1–34) 5 (4–6; 1–31) <.001
Intravenous artesunate 31 (15) 13 (19) .39 655 (19) 677 (46) <.001
Blood transfusion 26 (12) 19 (28) .002 323 (10) 317 (21) <.001

Abbreviations: CI, confidence interval; IQR, interquartile range; WHO, World Health Organization.

Data represent no. (%) of patients unless otherwise indicated.

The denominators for post-partum women represent the number of female patients aged >15 years.

The WHO 2015 malaria guidelines [25] criterion for convulsions is >2 convulsions in 24 hours. It does not specify that convulsions must be accompanied by a low Glasgow Coma Scale score.

Univariable ordered logistic regression analysis was used to determine the relationship between age groups and whether or not WHO criteria were met.