某市强直性脊柱炎住院患者疾病负担分析*

刘影,牛瑞,张雪梅,冯变玲

Analysis on Disease Burden of Hospitalized Patients with Ankylosing Spondylitis in a Certain City

Ying LIU,Rui NIU,Xuemei ZHANG,Bianling FENG

图5 不同年份的次均住院天数的变化

Fig.5 Changes of average length of stay per year