Results suggest that youth with JIA participated less in both  social and physical leisure activities  as compared to healthy peers , and those with JIA did not meet national recommendations for physical activity .
Characterization of leisure activity remains limited and mostly focused on physical activity in JIA .
UNLABELLED The aim of this systematic review is to describe participation in social and physical leisure activities among children and adolescents with JIA , as well as identify potential determinants of leisure participation .
Limited search strategies were effective in finding relevant nonrandomized studies.
BACKGROUND AND OBJECTIVE Search ing for nonr and omized studies in electronic data bases is complicated because there is a variety of study design s and lack of st and ardization in the terminology . The purpose of this study was to develop and evaluate a method to limit search strategies according to study design of comparative nonr and omized studies ( cNRSs ) . METHODS Four up date d Cochrane systematic review s that included nonr and omized studies ( cohort , case-control , and cross-sectional studies ) of the effects of health care interventions were selected . Search strategies limited to study design were devised for each one of these topic areas in two electronic data bases ( MEDLINE and EMBASE ) . A progressive method ( PM ) and a fixed method for selecting the most appropriate search terms associated with study design of nonr and omized studies are suggested . RESULTS The results showed that the sensitivity of search strategies ( in two data bases combined ) limited to study design were between 90 % and 100 % for the PM using both controlled vocabulary ( CV ) and textwords ( TWs ) and between 95 % and 100 % for a fixed set of controlled vocabulary and TWs . CONCLUSIONS It is possible and acceptable to use search strategies limited to study design of cNRSs of health care interventions
Results suggest that youth with JIA participated less in both  social and physical leisure activities  as compared to healthy peers , and those with JIA did not meet national recommendations for physical activity .
Characterization of leisure activity remains limited and mostly focused on physical activity in JIA .
UNLABELLED The aim of this systematic review is to describe participation in social and physical leisure activities among children and adolescents with JIA , as well as identify potential determinants of leisure participation .