[Clinical Analysis of Joint Health Status of Patients with Hemophilia Treated on-Demand]

To investigate the joint health status of patients with hemophilia treated on-demand and to analyze the incidence trend of hemophilic arthritis, so as to probide the scientific clinical data for furture study.

The clinical data of patients with hemophilia admitlted in Tianjin municipal first central hospital form March 2016 to October 2017 were collected, the basic information of patients was recorded; the joint health status was evaluated by using the hemophillia Joint Health Score (HJHS) 2.1; the life guality of patients was analyzed by using the MOS item short form-36 health survey, SF-36; the correlation of joint function with life guatity was analyzed by pearson correlation test.

196 ont of 210 patients with hemophila were treated on demand. The average age of patients was 27.81(2-73) years old, Among 196 patients, 189 was hemophilia A (96.43%) and 9 was hemophilia B (3.57). The patients without joint involvement, patients with 1 joint and 32 jionts involvement accounted for 3.57%, 11.72% and 84.71% respectively. The incidonce of involvement in elbow, knae and ankle joints was 71.93%, 80.61% and 82.91% respectively. The joint invlvement rate in patients with mild, intermediate and severe hemphilia accounted for 61.66%, 72.40% and 80.73% respectively. The mean HJHS in intermediate and severe henophilia patients was 23.59±17.02 scores and 26.69±17.68 scores respectively, there was no statistical difference (P>0.05). The joint fanction in hemophilia patients negatively correlated with life gnality of patients (r = 0.076).

The incidence of arthritis in hemophilia patients is high, and at least 1 joint has been involved in patients aged over 10 years old, moreover the multiple joint involvement exrsts in most patients. The impairment of joint function affects the routine behavious and activities.