... presentation of findings. NSha contributed tostudy conception, interpretation of results, and critical revisions of themanuscript. MW was involved in designing the study and drafting andrevising the ... collectionstrategy, and revising the paper in terms of presentation of findings anddiscussion. JM participated in drafting the manuscript, data collection, andstatistical analyses. JZ participated in the design, ... func-tioning and self- sufficiency. This was measured via selfreports of: 1) physical limitations (defined as “difficulty in walking, climbing stairs, grasping objects, reachingoverhead, lifting,...