Table 1 Descriptive characteristics of the 37 studies included in the systematic review and meta-analysis.

From: Albumin levels in malaria patients: a systematic review and meta-analysis of their association with disease severity

Characteristics

n. (37 studies)

%

Publication year

 Before 2000

10

27.03

 2000–2009

6

16.22

 2010–2019

16

43.24

 2020–2023

5

13.51

Study designs

 Case–control study

19

51.35

 Cross-sectional study

11

29.73

 Cohort study

6

16.22

 Quasi-experimental study

1

2.70

Study areas

 Asia

16

43.24

  India

8

27.62

  Thailand

4

10.81

  Turkey

2

5.41

  Indonesia

1

2.70

  Lao People’s Democratic Republic

1

2.70

 Africa

17

45.95

  Nigeria

11

29.73

  Sudan

2

5.41

  Gambia

1

2.70

  Ethiopia

1

2.70

  Cameroon

1

2.70

  Uganda

1

2.70

 Europe

2

5.41

  France

1

2.70

  Germany

1

2.70

 Oceania (Papua New Guinea)

1

2.70

 South America (Brazil)

1

2.70

Plasmodium species

 P. falciparum

27

72.97

 P. vivax

2

5.41

 P. falciparum, P. vivax

1

2.70

 Not specified

7

18.92

Participants

 Adults

17

45.95

 Children

10

27.03

 Children and adults

6

16.22

 Not specified

4

10.81

Symptom

 Symptomatic malaria

25

67.57

 Asymptomatic malaria

1

2.70

 Symptomatic and asymptomatic malaria

2

5.41

 Not specified

9

24.32

Methods for Plasmodium detection

 Microscopic method

26

70.27

 Microscopic method, RDT

5

13.51

 RDT

1

2.70

 Not specified

5

13.51

Blood sample for albumin

 Serum

22

59.46

 Plasma

12

32.43

 Not specified

3

8.11

  1. RDT rapid diagnostic test.