Table 3 Plasmodium falciparum positivity rate by diagnostic test in blood samples collected during pregnancy and at delivery. RECIPAL study, 2014–2017
Total (N specimens) | During pregnancy | At delivery | |||
|---|---|---|---|---|---|
1st trimestera | 3rd trimestera | Peripheral blood | Placental blood | ||
Positivity rates in specimens tested with uRDT, cRDT and qPCR | |||||
cRDT | 11.6% (109/942) | 15.7% (50/319) | 10.6% (26/246) | 8.2% (15/183) | 9.3% (18/194) |
uRDT | 16.2% (153/942) | 24.8% (79/319) | 13.4% (33/246) | 11.5% (21/183) | 10.3% (20/194) |
qPCR | 18.3% (172/942) | 33.5% (107/319) | 15.0% (37/246) | 9.8% (18/183) | 5.2% (10/194) |
Positivity rates in specimens tested with both microscopy and qPCR | |||||
Microscopy | 3.7% (34/926) | 5.2% (16/310) | 2.1% (5/244) | 2.2% (4/180) | 4.7% (9/192) |
Sub-microscopic infectionb | 16.7% (149/992) | 32.0% (94/294) | 13.8% (33239) | 8.0% (14/176) | 4.4% (8/183) |