[Risk factors of death cases of hand-foot-and-mouth disease in Hunan province].

Objective To study risk factors of death cases of hand foot and mouth diseases (HFMD) in Hunan province, so as to provide scientific evidence for further prevention and control.Methods The 105 death cases of HFMD between January and October,2010 in Hunan Province were selected as case group; and the 210 survival cases of serious HFMD,which were matched by gender andresident places with a ratio at 2∶1 in the same period in Hunan were selected as control group. The basicinformation ,hospitalized experience and previous medical history had been surveyed and the relevant risk factors were analyzed by single factor and multi-factor logistic regression. Results In case group,79.05％(83/105) of the cases lived in rural area and 9.52％ (10/105) of the cases lived in urban-rural midst area. In control group,87. 62％ (184/210) of the cases lived in rural area and 11.43％ (24/210) of the cases lived in urban-rural midst area. In case group,59.05％ (62/105) of the patients first visited rural (private) clinics and 20. 00％ (21/105) first visited community hospitals in villages and towns; while in control group,43. 81％ (92/210) and 13. 33％ ( 28/210 ) chose rural (private) clinics and community hospitals in villages and towns as the first choice respectively. 22. 86％ ( 24/105 ) of the case group and 39. 05％ (82/210) of the control group were diagnosed as HFMD in their first visit to hospital. 27.62％(29/105) of the case group and 7. 14％ (15/210) in control group were provided pyrazolone in the treatment. For glucocorticoid,80. 95％ ( 85/105 ) and 5.71％ (6/105) of the case group were given as treatment by rural(private) clinics and community hospitals in villages and towns separately; while the proportions in the control group were 41.43％ (87/210) and 0. 48％ (1/210) respectively. For antibiotics,35.24％ ( 37/105 ) and 23. 81％ (25/105) of the case group were prescribed by rural (private) clinics and community hospitals in villages and towns separately; while the percentages in the control group were 15. 71％ (33/210) and 7.14％ (15/210). 3.81％ (4/105) of the case group and 11.90％ (25/210) of the control group were vaccinated in one month before the onset. The results of single-factor logistic regression indicated that living in rural areas( OR = 0. 075,95％ CI:0. 016 - 0. 343 ) and in rural-urban midst areas ( OR = 0. 069,95％ CI: 0. 013 - 0. 368 ), diagnosis of HFMD in the first visit to hospital ( OR = 0. 463,95 ％ CI:0. 271 - 0. 788 ) and vaccination one month before the onset ( OR = 0. 293,95 ％ CI :0. 099 - 0. 866 )were four protective factors; while rural (private) clinics as the first choice ( OR = 4. 717,95 ％ CI: 1. 891 -11. 767),community hospital in villages and towns as the first choice (OR = 5. 250,95％CI: 1. 883 -14. 641 ), medication of pyrazolone ( OR = 4. 961,95％ CI: 2. 520 - 9. 766 ), medication of glucocorticoid in rural(private) clinics (OR = 6. 009,95％ CI:3. 435- 10. 510) and in community hospital in villages and towns( OR = 12. 667,95％ CI: 1. 505 - 106. 638 ), medication of antibiotics in rural (private) clinics ( OR =2. 918,95％ CI: 1. 690 - 5. 040) and in community hospital in villages and towns ( OR = 4. 062,95％ CI:2.036- 8. 108 ) were seven risk factors. The results of multi-factors logistic regression showed that medication of pyrazolone ( OR = 2. 311,95％ CI: 1. 062 - 5. 030 ), medication of glucocorticoid in rural (private) clinics ( OR = 5.480,95 ％ CI:3.039 - 9. 880 ), medication of antibiotics in rural (private) clinics (OR =2. 430,95％ CI:1.301 -4. 538) and medication of antibiotics in community hospitals in villages and towns( OR = 3. 344 ,95％ CI: 1. 477 -7.569) were the risk factors of death of HFMD. ConclusionThe risk factors of HFMD deaths include the medication of pyrazolone, glucocorticoid and antibiotics by rural (private) clinics and medical institutions in villages and towns. The department concerned should revise the technical manual to standardize the medication of the above drugs. Key words: Hand,foot and mouth disease; Death; Risk factors; Logistic models