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Table 1 Characteristics of the studies included in the meta-analysis

From: Loop-mediated isothermal amplification (LAMP) test in the detection of uncomplicated malaria in pregnancy: a meta-analysis of diagnostic accuracy

Author, yr

Study yr

Mean (SD) age in yr

Gravida

Study design

Country

Index test

Manufacture/brand name

Ref test

tp

fp

fn

tn

Sample size

Parasite density

Remarks

Kapisi 2017

[30]

2014

21(4.2)$

Pri (46.6%)$

Nested cohort

Uganda

LAMP

Eiken Loopampâ„¢

Microscopy

24

0

1

255

280

NA

HIV -ves

Natureeba 2017

[31]

2014

30

Multi (82%)

RCT

Uganda

LAMP

Eiken, Japan

Microscopy

0

0

2

96

98

NA

HIV + ves

Tadesse 2020

[32]

2018–2019

26.2

(4.6)

Multi (75.8%)

L

Southwest Ethiopia

LAMP

Meridien Bioscience, Cincinnati, OH

Microscopy

5

4

0

426

435

mean

882.7 p/µL

 

2018–2019

26

Multi (56.0%)

L

Southwest Ethiopia

LAMP

Meridien Bioscience, Cincinnati, OH

RDT (HRP2/pLDH combo)

6

3

0

426

435

 

Tegegne 2017

[33]

2016

27

Multi (74.7%)

CS

Northwest Ethiopia

LAMP

(Pan/Pf)

Eiken Chemicals, Tokyo

nPCR

10

5

0

72

87

3380 p/µL

 

Tran 2020

[34]

2014

21(md)

Pri (38.2%)

Secondary data from an RCT

Uganda

LAMP

Eiken Chemical

Microscopy

23

0

78

127

228

NA

 

Vasquez 2018

[35]

2016–2017

24 (IQR, 20–28)1

Pri (49.3%)

Prospective

Colombia

Pan-LAMP,

Pf-LAMP

Eiken Chemicals, Tokyo

nPCR

39

0

0

492

531

2480 p/µL(md)

 

Vasquez 2020

[36]

2017–2018

24 (IQR, 20–29)1

Pri (30.5%)

CS

Colombia

Pan-LAMP,

Pf-LAMP

Loopampâ„¢ MALA RIA Kit, Eiken Chemical Company

qRT-PCR

35

1

4

818

858

geometric mean of 13.2 p/µL

 

Samuels 2022 [37]

2018

23 (IQR 20–28)

Pri (25.5%)

Section (25.9%)

multi (48.6%)

Prospective

Kenya

LAMP

Meridian Bioscience, Illumigene Malaria

PET PCR

118

55

54

310

482

< 200 p/µL$$

 
  1. LAMP: loop-mediated isothermal amplification; multi: multiparous; md: medium; nPCR: nested polymerase chain reaction; pLDH: Parasite lactate dehydrogenase; Pan-LAMP: LAMP for all Plasmodium species; Pf-LAMP LAMP specific for Plasmodium falciparum; pri primary gravida; qRT-PCR Real-Time Quantitative Reverse Transcription polymerase chain reaction; RCT Randomized controlled trial; RDT: Rapid diagnostic test; Ref test: reference test; sec: secondary; SP Sulfadoxine–Pyrimethamine ; TN true negative; TP true positive; yr year FN false negative; FP false positive; HRP2 Histidine rich protein 2; IQR interquartile range; L longitudinal
  2. $: ≥ 50% has positives; $$: 78.5% of CS: cross-sectional