Quality of Life Among General Populations of Different Countries in the Past 10 Years, With A Focus on Human Development Index: A Systematic Review and Meta-Analysis

Background: the current study was conducted to estimate the integrated mean of quality of life (qol) of the gen-eral population of different countries around the world and to compare them on the grounds of the human devel-opment index (hdi). methods: well-known international databases such as medline, scopus, science direct, google scholar & google, and domestic databases including sid, iranmedex, irandoc & magiran were searched in 2015. the data were analyzed with the random effect model, using stata 11 software. results: ninety-seven studies were selected for the final analysis. the overall qol mean in the very high hdi sub-group was 74.26 (ci=72.40-76.12), which was the highest value. the lowest mean score was observed in the psycho-logical domain (m=67.37; ci=66.23-68.52). in the high hdi subgroup, the highest mean was observed in the social relationships domain (m=64.16; ci=61.99-66.34), and the lowest mean was observed in the environment domain (m=58.76; ci=56.50-61.03). in the medium hdi subgroup, the highest mean was calculated for the overall qol score (m=62.62; ci=56.35-68.92), and the lowest mean was estimated for the environment domain (m=56.98; ci=53.54-60.43). the highest mean in the low hdi subgroup was observed in the physical health domain (m=68.17; ci=67.43-70.52), and the lowest mean was calculated for the environment domain (m=53.14; ci=51.57-54.72). there was considerable heterogeneity in all the subgroups and domains; the values reported here are the weighted means of qol for different countries. conclusion: overall, the highest means of various qol domains were observed in the very high hdi subgroup.