pexfix: Pooled excess risk estimate using the fixed effect model...

In Package-Metaan-Rep/Metaan: Meta-Analysis of Published Epidemiological Studies

Description

Fixed effect model for standard meta-analysis of excess relative risk (ERR) or excess odds ratio (EOR) estimates.

Usage

pexfix(err, u, l, conf.level = 0.95)

Arguments

err	A numeric vector of the risk estimated from the individual studies
u	A numeric vector of the upper bound of the confidence interval of the risk reported from the individual studies.
l	A numeric vector of the lower bound of the confidence interval of the risk reported from the individual studies.
conf.level	Coverage for confidence interval

Value

Object of class "metaan.era". A list that print the output from the pexfix function. The following could be found from the list :

• err_tot (Effect): The pooled effect from excess relative risk (ERR) or excess odd ratio (EOR) estimates

• sd_tot (SE Effect): The standard error of the pooled effect (see reference Richardson et al 2020 for more details)

• l_tot (Lower CI): The lower confidence interval bound of the pooled effect (err_tot)

• u_tot (Upper CI): The upper confidence interval bound of the pooled effect (err_tot)

• Cochrane_stat (Cochran’s Q statistic): The value of the Cochrane's statistic of inter-study heterogeneity

• Degree_freedom (Degree of Freedom): The degree of freedom

• p_value (P-Value): The p-value of the statistic of Cochrane

• I_square (Higgins’ and Thompson’s I^2 (%)): I square value in percent (%) indicating the amount of the inter-study heterogeneity

Examples

study <- c("Canada", "Northern USA", "Chicago", "Georgia","Puerto", "Comm",
"Madanapalle", "UK", "South Africa", "Haiti", "Madras")
Risk <- c(0.205, 0.411, 0.254, 1.562, 0.712, 0.983, 0.804, 0.237, 0.625,
0.198, 1.012)
lower_ci <- c(0.086, 0.134, 0.149, 0.374, 0.573, 0.582, 0.516, 0.179,
0.393, 0.078, 0.895)
upper_ci <- c(0.486, 1.257, 0.431, 6.528, 0.886, 1.659, 1.254, 0.312,
0.996, 0.499, 1.145)

donne <- data.frame(cbind(study, Risk, lower_ci, upper_ci))

donne$Risk <- as.numeric(as.character(donne$Risk))
donne$upper_ci <- as.numeric(as.character(donne$upper_ci))
donne$lower_ci <- as.numeric(as.character(donne$lower_ci))

pexfix(err=donne$Risk, u=donne$upper_ci, l=donne$lower_ci,
 conf.level=0.95)

Package-Metaan-Rep/Metaan documentation built on Dec. 28, 2021, 6:40 a.m.