Table 4 Quality of the included studies.

From: A meta-analysis on the prevalence and characteristics of severe malaria in patients with Plasmodium spp. and HIV co-infection

No.

Reference

Selection

Compatibility

Exposure

Total score (9)

Rating (high, moderate, low quality)

Is the case definition adequate?

Representativeness of the cases

Selection of controls

Definition of controls

Ascertainment of exposure

Same method of ascertainment for cases and controls

Non–response rate

1.

Addissie et al. (2007)21

*

*

*

*

**

*

*

*

9

High

2.

Amodu-Sanni et al. (2020)22

*

*

*

*

**

*

*

*

9

High

3.

Berg et al. (2014)2

*

*

*

*

**

*

*

*

9

High

4.

Berg et al. (2008)23

*

*

*

*

**

*

*

*

9

High

5.

Berg et al. (2020)24

*

*

*

*

**

*

*

*

9

High

6.

Berkley et al. (2009)25

*

*

*

*

**

*

*

*

9

High

7.

Beyene et al. (2017)26

*

*

*

*

**

*

*

*

9

High

8.

Bronzan et al. (2007)27

*

*

*

*

*

*

*

*

8

High

9.

Chalwe et al. (2009)28

*

*

*

*

**

*

*

*

9

High

10.

Cohen et al. (2005)15

*

*

*

*

**

*

*

*

9

High

11.

Davenport et al. (2010)29

*

*

*

*

**

*

*

*

9

High

12.

Grimwade et al. (2004)42

*

*

*

*

**

*

*

*

9

High

13.

Hendriksen et al. (2012)30

*

*

*

*

**

*

*

*

9

High

14.

Hochman et al. (2015)31

*

*

*

*

*

*

*

*

8

High

15.

Huson et al. (2015)32

*

*

*

*

**

*

*

*

9

High

16.

Imani et al. (2011)43

*

*

*

*

**

*

*

*

9

High

17.

Jacques et al. (2019)33

*

*

*

*

**

*

*

*

9

High

18.

Joice et al. (2016)34

*

*

*

*

*

*

*

*

8

High

19.

Kyeyune et al. (2014)44

*

*

*

*

*

*

*

*

8

High

20.

Mandala et al. (2018)35

*

*

*

*

*

*

*

*

8

High

21.

Mouala et al. (2008)36

*

*

*

*

**

*

*

*

9

High

22.

Munyenyembe et al. (2018)37

*

*

*

*

**

*

*

*

9

High

23.

Niyongabo et al. (1994)45

*

*

*

*

*

*

*

*

8

High

24.

Nkuo-Akenji et al. (2008)38

*

*

*

*

**

*

*

*

9

High

25.

Otieno et al. (2006)46

*

*

*

*

**

*

*

*

9

High

26.

Sandie et al. (2019)39

*

*

*

*

**

*

*

*

9

High

27.

Saracino et al. (2012)40

*

*

*

*

**

*

*

*

9

High

28.

Tagoe DNA and Boachie (2012)41

*

*

*

*

**

*

*

*

9

High

29.

Tay et al. (2015)17

*

*

*

*

**

*

*

*

9

High

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