Meta-analyses of the proportion of Japanese encephalitis virus infection in vectors and vertebrate hosts

Table 5 Subgroup meta-analysis^a of studies reporting proportion of minimum infection rates (MIR) in vectors grouped by mosquito species. Each effect size (computed for the group of studies reporting proportion of JEV in each mosquito species) represents pooled estimates (effect size) of the outcome for each mosquito species, and the overall represents the overall pooled estimate across all mosquito species

Mosquito species	Effect size (logit)	95% CI (logit)	MIR^b	95% CI (proportion)	% weight
Anopheles sinensis	-1.32	-1.36– -1.28	0.21	0.20–0.22	2.44
Culex tritaeniorhynchus	-1.19	-1.70– -0.68	0.23	0.15–0.34	21.22
Mansonia uniformis	-1.85	-3.34– -0.36	0.14	0.03–0.41	4.02
Anopheles subpictus	0.93	-0.03–1.89	0.72	0.49–0.87	4.38
Culex gelidus	-1.01	-1.80– -0.22	0.27	0.14–0.44	15.36
Culex fuscocephala	-1.47	-2.53– -0.41	0.19	0.07–0.40	7.23
Culex vishnui	-0.37	-0.48– -0.26	0.41	0.38–0.44	4.80
Culex spp.	-0.34	-1.07–0.38	0.41	0.26–0.59	18.55
Culex pseudovishnui	-1.32	-1.65– -1.00	0.21	0.16–0.27	5.42
Culex sitiens subgroup	0.84	-2.67–4.34	0.70	0.07–0.99	7.26
Ochlerotatus vigilax	-0.85	-0.93– -0.77	0.30	0.28–0.32	2.43
Anopheles vagus	-0.53	-1.16–0.10	0.37	0.24–0.52	2.16
Aedes spp.	-1.21	-1.43– -0.99	0.23	0.19–0.27	2.40
Culex whitmorei	-1.21	-1.56– -0.86	0.23	0.17–0.30	2.34
Overall	-0.79	-1.06– -0.51	0.31	0.26–0.37	100

^aRandom-effects meta-analysis using the method of DerSimonian & Laird [24] to estimate the variance between studies, using a restricted maximum likelihood (REML) algorithm. I ² range: 80.7% (P-value = 0.06) (Anopheles subpictus) – 100.00% (P-value = 0.64) (Culex sitiens subgroup)
^b p = (e ^logit/ (e ^logit+1))