OBJECTIVE: The aim of this cross-sectional study was to examine the relationship among pain and other symptoms intensity, and health-related quality of life (HRQoL) in Chinese patients with knee osteoarthritis (OA). METHODS: The study was cross-sectional, descriptive, and correlational. A convenience sample of 466 patients with knee OA was recruited in the study. Age, gender, body mass index (BMI), duration of disease, and Kellgren- Lawrence (KL) scores were recorded. HRQoL and symptoms were assessed using the 36-item Short Form Health Survey (SF-36) and the Western Ontario and McMaster (WOMAC) index in participants. RESULTS: The sample was predominantly female (82%) with mean age 56.56 years and mean BMI 24.53 kg/m(2). We found that WOMAC subscale scores significantly negative correlated with the majority of SF-36 subscale scores in knee OA patients (P < 0.05). There were no correlations between BMI, duration of disease, KL score and the vast majority of SF-36 subscale scores in patients (P > 0.05). In addition, there was a significant correlation between age and PCS, gender and MCS in patients (P < 0.05). Regression analysis showed, WOMAC subscale scores significantly negative correlated with the vast majority of SF-36 subscale scores. WOMAC-pain score had the strongest relationship with SF-36 PCS and MCS scores. CONCLUSIONS: In summary, pain severity has a greater impact on HRQoL than patient characteristics, other joint symptoms and radiographic severity in Chinese knee OA patients. Relieving of knee symptoms may help to improve patients' HRQOL. The study provided the evidence that relieving pain should be the first choice of therapy for knee osteoarthritis.
OBJECTIVE: The aim of this cross-sectional study was to examine the relationship among pain and other symptoms intensity, and health-related quality of life (HRQoL) in Chinese patients with knee osteoarthritis (OA). METHODS: The study was cross-sectional, descriptive, and correlational. A convenience sample of 466 patients with knee OA was recruited in the study. Age, gender, body mass index (BMI), duration of disease, and Kellgren- Lawrence (KL) scores were recorded. HRQoL and symptoms were assessed using the 36-item Short Form Health Survey (SF-36) and the Western Ontario and McMaster (WOMAC) index in participants. RESULTS: The sample was predominantly female (82%) with mean age 56.56 years and mean BMI 24.53 kg/m(2). We found that WOMAC subscale scores significantly negative correlated with the majority of SF-36 subscale scores in knee OA patients (P < 0.05). There were no correlations between BMI, duration of disease, KL score and the vast majority of SF-36 subscale scores in patients (P > 0.05). In addition, there was a significant correlation between age and PCS, gender and MCS in patients (P < 0.05). Regression analysis showed, WOMAC subscale scores significantly negative correlated with the vast majority of SF-36 subscale scores. WOMAC-pain score had the strongest relationship with SF-36 PCS and MCS scores. CONCLUSIONS: In summary, pain severity has a greater impact on HRQoL than patient characteristics, other joint symptoms and radiographic severity in Chinese knee OA patients. Relieving of knee symptoms may help to improve patients' HRQOL. The study provided the evidence that relieving pain should be the first choice of therapy for knee osteoarthritis.
Entities:
Keywords:
Knee osteoarthritis; SF-36; WOMAC; pain; quality of life
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