RESUMEN
To determine whether the serum vitamin d level is associated with increasing age in female OA patients. Experimental and Observational Study. This study was conducted at the Department of Orthopaedic, Civil Hospital, Karachi from Feb. 2006 to Jan. 2008. Sixty female patients who were suffering from OA were studied. Patients were classified according to their stage of severity of OA in knee joints. Serum vitamin D was measured in serum by ELISA technique. According to distribution patients of group 3 having the age between 61 - 70 years. Serum vitamin D was detected in serum. Group 3 has high serum Vitamin D levels as compared to group 1 and 2 [P<0.5]. The age group of between 61 years and 70 years has low vitamin D levels, indicating that old age may be one of risk factor for OA