Never-married persons (singles) constitute a growing demographic group; yet, the magnitude of the all-cause relative mortality risk for nonelderly singles is not known and important moderating factors have not been explored. The authors used meta-analysis to examine 641 risk estimates from 95...

Perceived social support has long been recognized as associated with better health and longevity. However, important factors that may moderate this relationship have not been sufficiently explored. The authors used meta-analyses and meta-regressions to examine 178 all-cause mortality risk...