Singapore English and Chinese versions of KOOS

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1 Knee injury and Osteoarthritis Outcome Score (KOOS), Singapore English and Chinese versions LK 1.0 Singapore English and Chinese versions of the KOOS Singapore English and Chinese versions of the KOOS were culturally adapted from the source English version (version LK 1.0) following recommended cross-cultural translation and adaptation guidelines (1), and with input from the instrument developer (Dr Ewa Roos). Both versions were well accepted by patients in pilot testing and were subsequently administered to a consecutive sample of 127 English and 131 Chinese-speaking Singaporeans with knee osteoarthritis. Cronbach s alpha exceeded 0.7 for all domains except for Chinese pain and symptoms domains. Intra-class correlations exceeded 0.7 for all domains except English sport and recreation and Chinese knee-related QoL domains. Hypothesized item-to-domain correlations (Spearman s ρ 0.4) were observed for 38 items in English and 29 in Chinese versions respectively. Convergent construct validity was supported by the presence of hypothesized moderate/strong correlations (ρ= ) for 13 and 11 a-priori hypotheses in the English and Chinese versions, respectively. Divergent construct validity was supported by the presence of weak correlations (ρ= ) for 12 and 11 a-priori hypotheses in the English and Chinese versions respectively (2). For further information about Singapore English and Chinese versions of the KOOS, please contact: Dr. Julian Thumboo Senior Consultant, Dept of Rheumatology and Immunology, Singapore General Hospital Adjunct Associate Professor, Yong Lo Lin School of Medicine, National University of Singapore Mailing Address: Dept of Rheumatology and Immunology, Singapore General Hospital Outram Road Singapore Phone/ Fax: / julian.thumboo@sgh.com.sg References: 1. Guillemin F, Bombardier C, Beaton D. Cross cultural adaptations of health related quality of life measures: literature review and proposed guidelines. J Clin Epidemiol 1993;46: Xie F, Li SC, Roos E, Fong KY, Lo NN, Yeo SJ, Yang KY, Yeo W, Chong HC, Thumboo J. Cross-Cultural Adaptation and Validation of Singapore English and Chinese Versions of the Knee Injury and Osteoarthritis Outcome Score (KOOS) in Asians with Knee Osteoarthritis in Singapore. Osteoarthritis Cartilage, In press,

2 Knee injury and Osteoarthritis Outcome Score (KOOS), English version LK 1.0 KOOS KNEE SURVEY Today s date: / / Date of birth: / / Name: INSTRUCTIONS: This survey asks for your view about your knee. This information will help us keep track of how you feel about your knee and how well you are able to do your usual activities. Answer every question by ticking the appropriate box, only one box for each question. If you are unsure about how to answer a question, please give the best answer you can. Symptoms These questions should be answered thinking of your knee symptoms during the last week. S1. Do you have swelling in your knee? Never Rarely Sometimes Often Always S2. Do you feel grinding/friction, hear clicking/cracking or any other type of noise when your knee moves? Never Rarely Sometimes Often Always S3. Does your knee jam or lock when moving? Never Rarely Sometimes Often Always S4. Can you straighten your knee fully? Always Often Sometimes Rarely Never S5. Can you bend your knee fully? Always Often Sometimes Rarely Never Stiffness The following questions concern the amount of joint stiffness you have experienced during the last week in your knee. Stiffness is a sensation of restriction or slowness in the ease with which you move your knee joint. S6. How severe is your knee joint stiffness after first wakening in the morning? 2

3 Knee injury and Osteoarthritis Outcome Score (KOOS), English version LK 1.0 S7. How severe is your knee stiffness after sitting, lying or resting later in the day? Pain P1. How often do you experience knee pain? Never Monthly Weekly Daily Always What amount of knee pain have you experienced in the last week during the following activities? P2. Twisting/pivoting on your knee P3. Straightening knee fully P4. Bending knee fully P5. Walking on flat surface P6. Going up or down stairs P7. At night while in bed P8. Sitting or lying P9. Standing upright 3

4 Knee injury and Osteoarthritis Outcome Score (KOOS), English version LK 1.0 Function, daily living The following questions concern your physical function. By this we mean your ability to move around and to look after yourself. For each of the following activities please indicate the degree of difficulty you have experienced in the last week due to your knee. A1. Descending stairs A2. Ascending stairs For each of the following activities please indicate the degree of difficulty you have experienced in the last week due to your knee. A3. Rising from sitting A4. Standing A5. Bending to floor/pick up an object A6. Walking on flat surface A7. Getting in/out of car A8. Going shopping A9. Putting on socks/stockings A10. Rising from bed 4

5 Knee injury and Osteoarthritis Outcome Score (KOOS), English version LK 1.0 A11. Taking off socks/stockings A12. Lying in bed (turning over, maintaining knee position) A13. Getting in/out of bath A14. Sitting For each of the following activities please indicate the degree of difficulty you have experienced in the last week due to your knee. A15. Getting on/off toilet A16. Heavy domestic duties (moving heavy boxes, scrubbing floors, etc) A17. Light domestic duties (cooking, dusting, etc) Function, sports and recreational activities The following questions concern your physical function when being active on a higher level. The questions should be answered thinking of what degree of difficulty you have experienced during the last week due to your knee. SP1. Squatting SP2. Running SP3. Jumping 5

6 Knee injury and Osteoarthritis Outcome Score (KOOS), English version LK 1.0 SP4. Twisting/pivoting on your injured knee SP5. Kneeling Quality of Life Q1. How often are you aware of your knee problem? Never Monthly Weekly Daily Constantly Q2. Have you modified your life style to avoid potentially damaging activities to your knee? Not at all Mildly Moderately Severely Extremely Q3. How much are you troubled with lack of confidence in your knee? Not at all Mildly Moderately Severely Extremely Q4. In general, how much difficulty do you have with your knee? Thank you very much for completing all the questions in this questionnaire 6

7 KOOS LK 1.0 中文版 KOOS KNEE SURVEY 今天的日期 : / / 您的出生日期 : ( 日 )/ ( 月 )/ ( 年 ) 姓名说明 : 这个调查会询问一些关于您的膝盖的问题这些信息将会帮助我们了解您对膝盖的感觉以及您进行日常活动的能力在回答每个问题时, 请在合适的方框内打勾, 每题只能选一个答案如果您不是很确定怎样回答一个问题, 请尽量选择一个您认为最好的答案症状请想一下您上个星期膝盖的症状, 然后回答这些问题 S1. 您的膝盖有肿胀吗? 没有很少有有时有经常有总是有 S2. 在活动您的膝盖时, 您有没有感到摩擦, 听到喀嚓声或是其他的声音? 没有很少有有时有经常有总是有 S3. 在您的膝盖活动时, 有被卡住或锁住的感觉吗? 没有很少有有时有经常有总是有 S4. 您能够完全伸直您的膝盖吗? 总是能经常能有时能很少能从不能 S5. 您能够完全弯曲您的膝盖吗? 总是能经常能有时能很少能从不能僵硬以下的问题是关于上个星期您所感受到膝关节僵硬的程度僵硬是指在活动膝关节的时候, 您感受到行动受到限制或者缓慢 S6. 早晨当您醒来的时候, 您的膝关节僵硬得有多严重? 7

8 KOOS LK 1.0 中文版 S7. 在一天当中的晚些时候, 当您坐下, 躺下或休息时, 您膝关节僵硬的有多严重? 疼痛 P1. 您有多经常会感觉到膝盖的疼痛? 没有每个月每个星期每天总是上个星期, 在以下活动中, 您膝盖的疼痛达到何种程度? P2. 扭动 / 以膝盖为中心转动 P3. 完全伸直膝盖 P4. 完全弯曲膝盖 P5. 在平坦的路面行走 P6. 上楼梯或下楼梯 P7. 晚上在床上的时候 P8. 坐着或躺着 P9. 站直 8

9 KOOS LK 1.0 中文版功能, 日常生活以下的问题是关于您的身体功能的这些是指您行动和照顾自己的能力对以下的每项活动, 请指出在上个星期您因为您的膝盖而感受到的困难程度 A1. 下楼梯 A2. 上楼梯 A3. 从坐的姿势起身 A4. 站着 A5. 弯向地面 / 捡起东西 A6. 在平坦的表面行走 A7. 进 / 出汽车 A8. 上街购物 A9. 穿短袜 / 长袜 A10. 起床 9

10 KOOS LK 1.0 中文版 A11. 脱去短袜 / 长袜对以下的每项活动, 请指出在上个星期您因为您的膝盖而感受到的困难程度 A12. 躺在床上 ( 翻身, 保持膝盖位置 ) A13. 洗澡 A14. 坐着 A15. 上厕所 A16. 重的家务 ( 搬很重的箱子, 擦地板, 等等 ) A17. 轻的家务 ( 做饭, 除尘, 等等 ) 功能, 体育及娱乐活动以下这些问题是关于您的身体处在较高活动水准时的功能请根据上个星期您因为膝盖的问题而感受到的困难程度来回答这些问题 SP1. 蹲着 SP2. SP3. 跑步跳跃 10

11 KOOS LK 1.0 中文版 SP4. SP5. 扭动 / 以膝盖为中心转动跪下生活质量 Q1. 您有多经常会意识到您的膝盖问题? 从不每月每周每天一直 Q2. 为了避免可能伤害到膝盖的活动, 您有改过您的生活方式吗? 从没有稍许有中度的很大的完全改了 Q3. 您因为对自己的膝盖缺乏信心而受到的困扰程度有多大? 没有轻微的中度的严重的极端的 Q4. 总的来说, 您的膝盖会给您带来多大的困难? 非常感谢您完成了这份调查中所有的问题 11

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