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Table 2 Meta-regression of potential confounders: sample size, date of publication, period of data collection

From: Global trend of Plasmodium malariae and Plasmodium ovale spp. malaria infections in the last two decades (2000–2020): a systematic review and meta-analysis

Species

Cofactors

Coef

[95% confidence interval]

z

p value

P. malariae

Sample size

− 2.36E−06

− 7.24E−06

2.51E−06

− 0.95

0.342

Date of publication

− 0.0021299

− 0.0051524

0.0008927

− 1.38

0.167

Period of data collection

− 0.0131058

− 0.0266983

0.0004866

− 1.89

0.059

P. ovale spp.

Sample size

− 4.95E−07

− 1.44E−06

4.45E−07

− 1.03

0.302

Date of publication

− 0.0003042

− 0.0015801

0.0009716

− 0.47

0.640

Period of data collection

− 0.0025502

− 0.008897

0.0037966

− 0.79

0.431