Age sequences of the elderly' social network and its efficacies on well-being: an urban-rural comparison in China.

The social network characteristics of the Chinese elderly are different between different age stages. Namely, the family network and the friend network have the "reverse structure " in age sequences. Meanwhile, the family network and the friend network have different efficacies on the well-being of the elderly in China, and the differences between urban and rural areas are even more obvious. For rural elderly, family network has very important effects on their well-being. Moreover, With the increase of age, family network's efficacies increase gradually. For urban elderly, comparatively, family network is just as important as friend network.