Table 2.

Laboratory markers of malaria disease severity

	n (%)
	Pre	Post	PR* [95% CI]	chi-squared p-value
Slide-positive (N = 386)	205 (80.4)	63 (48.1)	1.67 [1.39–2.02]	<0.0001
Suspected malaria, no slide results available (N = 51)	32 (11.1)	19 (12.7)	0.88 [0.52–1.50]	0.64
High parasitaemia (N = 268)	116 (56.6)	22 (34.9)	1.62** [1.11–2.38]	0.004
Severe anemia, slide-positive admissions (N = 161)	21 (18.9)	4 (8.0)	2.47** [0.84–7.24]	0.08
Severe anemia, all hospitalizations (N = 307)	23 (15.3)	6 (3.8)	3.85** [1.60–9.25]	0.001
No hemoglobin result (N = 244)	172 (53.4)	72 (31.4)	1.70 [1.37–2.11]	<0.0001

Results for laboratory-definable markers of disease severity: admission haemoglobin and admission peripheral parasitaemia are shown. For parasitaemia, percents are recorded as proportion of pre-intervention, post-intervention, or total admissions for malaria for which a slide result was available. For low vs. high (3+-4+) parasitaemia, percents are recorded as proportion of total slide-positive malaria admissions. For missing data, percentages are recorded as proportion of total malaria admissions for which slide results were unavailable. Severe anemia is defined as ≤ 5 g/dl. * Prevalence ratio comparing the proportion in the pre-intervention period to the proportion in the post-intervention period. ** adjusted for age using three categories (<1 year; 1–5 years; > 5 years)