RESUMO
Relationship between changes of body mass index and the pattern of osteoarthritis. Short title of the study: changes of Body mass index and osteoarthritis patterns. To assess the relationship between overweight, obesity and different patterns of osteoarthritis of the Knee joints and generalized Osteoarthritis. The current study included two hundred and nine patients attending the medical and rheumatology clinics in Amiri hospital for the period from March 2009 to February 2010. The group consisted of 115 males and 94 females, after their consent was taken they were interviewed, examined for their height and weight] to measure body mass index [and radiographed for the presence of knee and generalized Osteoarthritis. The association between Osteoarthritis and weight was then assessed through calculating the body mass index and the results were analyzed. We found a strong association between increased body weight and knee Osteoarthritis in females [OR 3.28 [95% confidence interval [Cl], 2.07-5.36] 1 and a significant association with generalized OA in males [OR 1.88 [95% Cl, 1.24-2.92]] .Regarding joint symptoms [Arthralgia, Swelling or Stiffness] were found to be associated with obesity [P=0.0001]. It is concluded that Increased body weight is strongly associated with knee Osteoarthritis in females and with joint symptoms in all Osteoarthritis patients, there is a strong association between obesity and generalized Osteoarthnitis among males. Regarding the generalized Osteoarthritis we could not find correlation with obesity