关键词: 反复呼吸道感染, 不同年龄组, 维生素A, 维生素E, 儿童

Abstract: Objective To know the vitamin A and E level changes and its clinical significance in children of different ages with recurrent respiratory tract infections,and provide reference for disease prevention. Methods A total of 130 cases with recurrent respiratory tract infection(RRTI group) and 124 health children (control group) were selected from April 2015 to June 2016 in the Affiliated Hospital of Weifang Medical University.All children were divided into 0~1,1~3,3~6 and > 6 years old groups.Serum vitamin A,E levels were determined by high performance liquid chromatography (HPLC). Results The levels of vitamin A and E in RRTI group were lower than those in the control group (P<0.05).The level of vitamin A was the lowest in the 0~1 year old children,but there was no significant difference in vitamin E levels among all age groups(P>0.05). Conclusions Low levels of vitamin A and E are associated with recurrent respiratory infections.Both recurrent respiratory tract infection and health examination,0~1 year-old children were the lowest level of vitamin A,followed by >6 years old group;And vitamin E levels are in the normal range,and no significant difference in all ages.

Key words: recurrent respiratory tract infections, different ages groups, vitamin A, vitamin E, children