Table 1.

Participant (n = 876) and episode (n = 1162) characteristics, by testing criteria

Characteristic	All (n = 876)	Anaemia only* (n = 639)	Symptomatic (n = 237)	P
Participant
Age	24.6 ± 5.4	24.5 ± 5.4	24.8 ± 5.5	0.446
Primigravida	48.3 (423)	47.3 (302)	51.1 (121)	0.318
Fundal height at enrolment	22 [6–27]	22 [6–27]	21 [6–27]	0.002
Rural dweller	70.6 (618)	70.9 (453)	69.6 (165)	0.714
SPAZ-IPTp	49.9 (437)	51.6 (330)	45.2 (107)	0.088

	All (n = 1162)	Anaemia only* (n = 854)	Symptomatic (n = 308)
Episode
RDT
HRP2 +	5.3 (62)	2.1 (18)	14.3 (44)	<0.001
HRP2 + pLDH +	4.5 (52)	1.2 (10)	13.6 (42)	<0.001
pLDH +	1.8 (21)	0.8 (7)	4.5 (14)	<0.001
Light microscopy
P. falciparum	11.5 (133)	5.6 (48)	27.6 (85)	<0.001
Asexual parasite density	5141 (1437; 16–123,484)	2237 (441; 39–19,372)	6731 (2418; 16–123,484)	0.001
<200 parasites/µL	21.1 (28/133)	29.2 (14/48)	16.5 (14/85)	0.085
P. vivax	0.9 (10)	0.9 (8)	0.7 (2)	0.480
Asexual parasite density	434 (96; 16–3341)	470 (60; 16–3341)	288 (288; 143–432)	<0.001
<200 parasites/µL	80.0 (8/10)	87.5 (7/8)	50.0 (1/2)	0.378
qPCR positive
P. falciparum**	14.7 (171)	10.1 (86)	27.6 (85)	<0.001
P. vivax**	2.2 (25)	2.5 (21)	1.3 (4)	0.358

Descriptive data on participant pregnancy characteristics of all women tested and by those tested specifically for anaemia or symptomatic malaria criteria. Descriptive data of rapid diagnostic test results, light microscopy and qPCR by all women tested, and and by those tested specifically for anaemia or symptomatic malaria criteria. Numbers are mean ± standard deviation, median [range], geometric mean (median; range) or  % (n). SPAZ-IPTp, intermittent preventive treatment with sulfadoxine-pyrimethamine plus azithromycin; HRP2, histidine-rich protein 2; pLDH, genus-specific lactate dehydrogenase

* Includes 81 women that were tested for mild anaemia (Hb ≥90 and <110 g/L) or for other reasons

** 6 women had mixed P. falciparum/P. vivax infections