1.Grade of membership analysis of multidimensional health status in adult twins
Yan NING ; Wenyan JI ; Yonghua HU ; Yueqin HUANG ; Weihua CAO ; Jun LV ; Ying QIN ; Zengchang PANG ; Shaojie WANG ; Liming LI
Chinese Journal of Disease Control & Prevention 2009;0(02):-
Objective To construct profiles of health status based upon physical,mental and social support items in adult twins of Qingdao.Methods Grade of Membership(GoM) model was applied to a set of 31 indicators to construct ideal profiles.Results Four health profiles were identified: pure type Ⅰ(healthy),pure type Ⅱ(personality disorders),pure type Ⅲ(psychological symptoms) and pure type Ⅳ(physiological symptoms).The most frequently occurring combination in this population was profile Ⅰ,Ⅱ,Ⅳ(14.74%),followed by profile Ⅰ,Ⅱ,Ⅲ,Ⅳ(13.44%),and then type Ⅰ(11.08%).Only 13.56% of subjects fell completely into one single pure type.Conclusions One healthy type and three non-healthy types are determined.Most individuals exhibit some of the characteristics of two or more types,holding partial membership in multiple categories.
2.Relation of Blood-labyrinth Barrier Permeability to the Pathogenesis of Sudden Sensorineural Hearing Loss:Findings on Three-dimensional Real Inversion Recovery Imaging MRI
Chenghui ZHANG ; Fangfang REN ; Weitao WANG ; Fang HAO ; Shaojie JI
Journal of Audiology and Speech Pathology 2024;32(3):236-240
Objective To study the inner ear appearance on three-dimensional real inversion recovery(3D re-al IR)imaging in patients with sudden sensorineural hearing loss,and to investigate the relationship between blood-labyrinth barrier permeability and pathogenesis and prognosis of sudden hearing loss.Methods A total of 41 pa-tients with sudden sensorineural hearing loss received 3D real IR at 3.0 T MRI,and the signal intensity of inner ear were recorded.We respectively measured cochlear signal intensity in affected and healthy ears,and medullary signal intensity,and calculated the cochlear/medulla ratio(CM ratio)separately.On the basis of CM ratio,we evaluated hearing levels at initial and after treatment,and the relationship between CM ratio and hearing prognosis.Results Among the 41 patients,33 cases(occupying 80.48%)individually had a higher CM ratio in the affected ear than in the healthy one.The CM ratio of the affected side was not higher than that of the healthy side in 8 cases,and the ef-fective rate was 100%,eighteen cases had below 1.5 times the CM ratio in affected ears as in healthy ears,with 77.78%effective rate of treatment;seven cases had 1.5 to 1.75 times,with 100%effective rate;two cases had 1.75 to 2 times,with 50%effective rate;and the rest 14 cases had over 2 times,with 14.28%effective rate(P<0.05).Conclusion The variation of blood-labyrinth barrier permeability in patients with sudden hearing loss can be read on the 3D Real IR,and it indicates that 80.48%patients have higher-intensity signals in lateral cochlea.The CM ratio can be adopted to evaluate the extent of inner ear damage of patients more accurately.As the CM ratio ri-ses,patients'prognosis become worse,and patients with over 1.75 times the CM ratio in the affected ear as in the healthy one,mostly suffer poor prognosis.