WOMAC ® Osteoarthritis Index logo

WOMAC® 3.1 Index

Knee and Hip Osteoarthritis Index

Since its development in 1982, the WOMAC® Index has undergone several revisions and modifications. The Index is self-administered and assesses the three dimensions of pain, disability and joint stiffness in knee and hip osteoarthritis using a battery of 24 questions. The latest version of the instrument (WOMAC® 3.1) is available in over 100 alternate language forms, and in many languages is available in 5-point Likert, 100mm Visual Analogue and 11-box Numerical Rating Scale formats. The WOMAC® 3.1 has been linguistically validated and is widely used in the evaluation of knee and hip osteoarthritis. It is a valid, reliable and responsive measure of outcome, and has been used in diverse clinical and interventional environments. The index has been subject to numerous validation studies which have addressed the following specific clinimetric issues:

Use of the WOMAC® 3.1 Index is supported by the latest version of the User Guide - User Guide XII. The User Guide contains information on index derivation, specific clinimetric issues, formatting, index presentation, score calculation, statistical issues and provides over 900 relevant references, the majority to previous studies employing the WOMAC® Osteoarthritis Index.

WOMAC® User Guide

Click here to review the WOMAC® User Guide's Table of Contents.

WOMAC® 3.1 Alternate Language Forms

North AmericaCanada
    -English
    -French
USA
    -English
    -Florida
    -Spanish
Central AmericaCosta Rica
Dominican Republic
Guatemala
Mexico
Puerto Rico
 
South AmericaArgentina
Brazil
    -Japanese
    -Portuguese
Chile
Colombia
Ecuador
Peru
    -Japanese
    -Spanish
Venezuela
Middle EastEgypt
Iran
Israel
    -Arabic
    -Hebrew
    -Russian
Jordan
Lebanon
Saudi Arabia
    -Arabic
    -English
 
Asia-PacificAustralia
China
Hong Kong
India
    -Bengali
    -English
    -Gujarati
    -Hindi
    -Kannada
    -Malayalam
    -Marathi
    -Oriya
    -Punjabi
    -Tamil
    -Telugu
    -Urdu
Japan
Korea
Malaysia
    -Cantonese
    -English
    -Malay
    -Tamil
New Zealand
Philippines
    -Cebuano
    -English
    -Tagalog
Singapore
    -English
    -Malay
    -Mandarin
Taiwan
Thailand
EuropeAustria
Belgium
    -Flemish
    -French
Bulgaria
Croatia
Czech Republic
Denmark
Estonia
    -Estonian
    -Russian
Finland
France
Germany
Greece
Hungary
Iceland
Ireland
Italy
Latvia
    -Latvian
    -Russian
Lithuania
    -Lithuanian
    -Russian
Netherlands
Norway
Poland
Portugal
Romania
Serbia
Slovakia
Slovenia
Spain
Sweden
Switzerland
    -French
    -German
    -Italian
Turkey
OtherBangladesh
Georgia
Moldova
    -Romanian
    -Russian
Russia
South Africa
    -Afrikaans
    -English
    -Sesotho
    -Setswana
    -Xhosa
    -Zulu
Ukraine
    -Ukrainian
    -Russian