Turkish Version of Mini Osteoarthritis Knee and Hip Quality of Life Questionnaire
Condition: Knee Osteoarthritis; Hip Osteoarthritis
MeSH terms: Osteoarthritis; Osteoarthritis, Knee; Osteoarthritis, Hip
Study type: Observational [Patient Registry]

Summary: 
      In this paper, the adaptation of the Mini-OAKHQoL questionnaire in the Turkish population
      analyzing the feasibility, reliability, and validity of the questionnaire was documented.
    

Detailed description: 
      Knee and hip osteoarthritis are common diseases that play an important role in health-related
      quality of life (HR-QoL). Assessing HR-QoL with a disease- and site-specific HR-QoL is more
      advantageous than generic scales. In that concept, to our knowledge, there is not any
      osteoarthritis- and lower limb-specific HR-QoL instrument to use in Turkey. Mini-OAKHQoL was
      derived from the OAKHQoL questionnaire, which was developed to assess the quality of life
      (QoL) in subjects with lower limb osteoarthritis. Its good psychometric properties have
      recently been shown and validation studies have been done in several populations.
      Mini-OAKHQoL's validation study has not been done before in Turkey. The aim is to investigate
      the validity and reliability of the Turkish version of the Mini-OAKHQoL. Patients diagnosed
      with knee or hip osteoarthritis were recruited. For cross-cultural adaptation, items of
      Mini-OAKHQoL were selected from the interrelated Turkish version of the OAKHQoL study in
      which the adaptation process had already done. Missing data, floor effect, and ceiling effect
      were calculated. Reliability analysis with internal consistency and test-retest reliability
      were discovered. Face, content, convergent, and divergent validities were applied.
    

Intervention name(s): Turkish version of Mini Osteoarthritis Knee and Hip Quality of Life Questionnaire; Nottingham Health Profile; Short form 36; Western Ontario and McMaster
Intervention type(s): Diagnostic Test; Diagnostic Test; Diagnostic Test; Diagnostic Test
Intervention description(s): Turkish version of Mini Osteoarthritis Knee and Hip Quality of Life Questionnaire (Mini-OAKHQoL) was derived from the Turkish version of OAKHQoL questionnaire, which was developed to assess the quality of life (QoL) in subjects with lower limb osteoarthritis. It includes five subscales: physical activities, mental health, pain, social support, social functioning; with three additional independent items addressing sexual life, professional life, and fear of being dependent. The numerical rating scales in the items range from 0 (worst) to 10 (best). Scores were obtained by computing the means of the item scores in each subscale. The last three items' score (independent items) becomes the corresponding score.; Standardized questionnaire to investigate the health-related quality of life. NHP is a general is used to measure health problems perceived by the patient. It comprises 6 sections. The sum of the items within each section ranges from 0 to 100, and the total score ranges from 0 to 600. The higher score shows a worse quality of life.; Standardized questionnaire to investigate the general health-related quality of life. The SF-36 questionnaire is a generic quality of life questionnaire and consists of 8 subscales, with 36 items. The scores ranges from 0 to 100 and the high score indicates good health.; Standardized questionnaire to investigate the health status of patients with osteoarthritis. The WOMAC OA index assesses the symptomatic severity and disability with pain, stiffness, and physical function domains. Each subscale was summated to a maximum score of 20, 8, and 68, respectively, with the higher scores corresponding worst health status.
Observational model: Case-Only
Time perspective: Prospective
Sampling method: Probability Sample
Study population: 
        Patients diagnosed with uni-or bilateral symptomatic knee or hip OA from the Rheumatology
        Division of Physical Medicine and Rehabilitation Department, Marmara University Faculty of
        Medicine, with the age between 18-75 years were included.