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Table 1 Demographic and clinimetric characteristics of the study populations from each study

From: Cross-cultural adaptions and measurement properties of the WORC (Western Ontario rotator cuff index): a systematic review

Study Country (Language)YearSample size(n)Mean (SD) age%female%maleShoulder condition
China (Chinese) [15]201715247.3 (9.5)44.455.6RC disorders that needed arthroscopic surgery
Netherlands (Dutch) [16]20135254.2 (9.7)5842Partial or full thickness RC rupture, calcific tendonitis, or RC tendinopathy
Netherlands (Dutch) [17]201357534753RC tear, calcific tendonitis, impingement/tendinosis/ tendonitis
Netherlands (Dutch) [18]20129255 (8.7)5347RC tear, calcific tendonitis, impingement
Canada (French –Canadian) [13]20158749.7 (12.4)34.565.6Tendinopathy, full or partial thickness RC tear
Japan (Japanese) [19]20137563.4 (11.1)4357Impingement syndrome, tendinopathy, partial or full thickness RC tear
Norway (Norwegian) 1920087451 (11)6436Shoulder pain or full-thickness rotator cuff tear
Iran (Persian) [21]200912046.7 (15.4)45.648.7Rotator cuff tendonitis, rotator cuff tendinosis with no tear, partial tear or full-thickness tear
Poland (Polish) [22]20186955.52971Had to be operated for rotator cuff disorders
Brazil (Portuguese-Brazilian) [ 23]200810056.7 (10.8)6931Tendinopathy, full or partial thickness RC tear
Brazil (Portuguese-Brazilian) [24]20063055.1 (10.8)46.753.3Tendinopathy, full or partial thickness RC tear
Spain (Spanish) [25]20156057 (12.3)4456Tendinopathy, full or partial thickness RC tear
Sweden (Swedish) [26]201665604258Surgery for subacromial pain condition or RC disorder
Turkey (Turkish) [27]20067254.9 (9.9)7525Impingement syndrome, full or partial RC tears