SWEOLD - Undersökningen om äldre personers levnadsvillkor 2011

SWEOLD is a nationally representative survey of the older population in Sweden. The sample consists of individuals previously included in the selection of Swedish Level of...SWEOLD是一项针对瑞典老年人口的全国代表性调查。其研究样本由此前被纳入瑞典生活水平（Swedish Level of）选样范围的个体组成。