Prevalence of and risk factors for severe malaria caused by Plasmodium and dengue virus co-infection: a systematic review and meta-analysis

Table 2 Quality of the included studies

No.	Author, year, reference number	Selection				Compatibility	Exposure			Total score (9)	Rating (High, moderate, low quality)
No.	Author, year, reference number	Is the case definition adequate?	Representativeness of the cases	Selection of controls	Definition of controls	Compatibility	Ascertainment of exposure	Same method of ascertainment for cases and controls	Non-response rate	Total score (9)	Rating (High, moderate, low quality)
1.	Ahmad et al., 2016, [25]	✵	✵			✵✵	✵	✵	✵	7	High
2	Ahmad et al., 2019, [30]	✵	✵			✵✵	✵	✵	✵	7	High
3.	Assir et al., 2014, [26]	✵	✵			✵✵	✵	✵	✵	7	High
4.	Barua and Gill, 2016, [27]	✵	✵			✵✵	✵	✵	✵	7	High
5.	Carme et al., 2009, [28]	✵	✵			✵	✵	✵	✵	6	Adequate
6.	Epelboin et al., 2012, [11]	✵	✵			✵✵	✵	✵	✵	7	High
7.	Halsey et al., 2016, [29]	✵	✵			✵✵	✵	✵	✵	7	High
8.	Kamath et al., 2019, [31]	✵	✵			✵	✵	✵	✵	6	Adequate
9.	Magalhaes et al., 2012, [13]	✵	✵			✵	✵	✵	✵	6	Adequate
10.	Magalhaes et al., 2014, [14]	✵	✵			✵✵	✵	✵	✵	7	High
11.	Mohapatra et al., 2012, [15]	✵	✵			✵✵	✵	✵	✵	7	High
12.	Sonkar et al., 2019, [32]	✵	✵			✵	✵	✵	✵	6	Adequate
13.	Verma et al., 2016, [33]	✵	✵			✵✵	✵	✵	✵	7	High

ISSN: 2049-9957