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Objective:To investigate the difference of vitamin A and E levels in children with different respiratory diseases at different ages.Methods:A total of 671 children in Hunan Children's Hospital from July 2017 to October 2019 were selected as the disease group, including 197 cases of pneumonia, 152 cases of recurrent respiratory tract infection, 91 cases of asthma, 88 cases of cough variant asthma and 143 cases of Mycoplasma pneumoniae pneumonia; At the same time, 245 healthy children were selected as the normal group. The serum vitamin A and vitamin E levels of the two groups were detected by high performance liquid chromatography (HPLC).Results:⑴ The vitamin A level [(0.31±0.09)mg/L] of the disease group was lower than the normal group [(0.35±0.25)mg/L], and the vitamin E level [(8.92±2.57)mg/L] was lower than the normal group [(9.62±2.79)mg/L], with statistically significant difference ( P<0.05); ⑵ The level of vitamin A in the disease group at the age of >1-3 years [(0.32±0.09)mg/L] was lower than that in the normal group of the same age group [(0.35±0.08)mg/L]; the level of vitamin A in the disease group at the age of >3-6 years old [(0.30±0.08)mg/L] was lower than that of the same age group [(0.32±0.07)mg/L], with statistically significant difference ( P<0.05); ⑶ The vitamin E level of the disease group at >1-3 years old [(9.23±2.56)mg/L], >3-6 [(8.02±1.86)mg/L] and >6-14 years old [(8.02±1.82)mg/L] were lower than that of the same age normal group [(9.76±2.81)mg/L, (9.67±2.87)mg/L, (9.19±2.58)mg/L], with statistically significant difference ( P<0.05); ⑷ There were significant differences in vitamin A levels among different age in disease group ( P<0.05). Among them, the children with high risk of subclinical deficiency accounted for the largest proportion (45.78%) in the 6-month-1-year-old group, and the proportion of children with normal vitamin A levels in other age groups was the largest; ⑸ There are significant differences in vitamin E levels in different age groups in the disease group ( P<0.05), the levels in the normal range accounts for the largest proportion of all ages; ⑹ The levels of vitamin A and vitamin E in mycoplasma pneumoniae infection group were increased compared with in recurrent respiratory infection group , asthma group, and cough variant asthma group, and the difference was statistically significant ( P<0.05). Compared with the pneumonia group, the level of vitamin E increased in the recurrent respiratory infection group, and the difference was statistically significant ( P<0.05); The vitamin E levels in the cough variant asthma group were reduced compared with the repeated respiratory infection group, asthma group and pneumonia group ( P<0.05). Conclusions:The Vitamin A and E levels of children suffering from respiratory diseases are lower than those of normal children. The Vitamin A and E levels of different respiratory diseases and different age groups are different. Vitamin A and E supplementation may be significantly targeted according to different ages and different respiratory diseases in clinical practice.
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Objective To explore the association between Vitamin A,E and mycoplasma pneumoniae pneumonia in children.Methods 153 children with mycoplasma pneumoniae pneumonia and 653 health children were selected as cases and controls,respectively.Propensity score matching (PSM) analysis were conducted to reducing confounding bias between groups.Blood samples were collected to test serum levels of vitamin A and E using high performance liquid chromatography (HPLC).Logistic regression was implemented to determine odds ratios (OR) and 95％ confidence intervals (CI) for evaluating the association of mycoplasma pneumoniae pneumonia with the serum levels of Vitamin A and E.Results Mter propensity score matching,the study cohort included 153 cases with mycoplasma pneumoniae pneumonia and 306 health children as controls.Before matching,with age and gender adjusted,logistic regression analysis indicated that higher serum levels of Vitamin A and E led to a lower risk of mycoplasma pneumoniae pneumonia (OR =0.075,95％ CI:0.007-0.815;OR =0.854,95％ CI:0.792-0.986).After matching,higher serum level of Vitamin E had a significantly lower risk of mycoplasma pneumoniae pneumonia (OR =0.877,95％ CI:0.810-0.950).Conclusions The serum levels of Vitamin A didnt have a statistically significant association with mycoplasma pneumoniae pneumonia.However,we observed an obvious association between Vitamin E and mycoplasma pneumoniae pneumonia.Hence Vitamin E clinical monitoring and supplementation are vital for preventing and treating mycoplasma pneumoniae pneumonia.
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Objective@#To explore the association between Vitamin A, E and mycoplasma pneumoniae pneumonia in children.@*Methods@#153 children with mycoplasma pneumoniae pneumonia and 653 health children were selected as cases and controls, respectively. Propensity score matching (PSM) analysis were conducted to reducing confounding bias between groups. Blood samples were collected to test serum levels of vitamin A and E using high performance liquid chromatography (HPLC). Logistic regression was implemented to determine odds ratios (OR) and 95% confidence intervals (CI) for evaluating the association of mycoplasma pneumoniae pneumonia with the serum levels of Vitamin A and E.@*Results@#After propensity score matching, the study cohort included 153 cases with mycoplasma pneumoniae pneumonia and 306 health children as controls. Before matching, with age and gender adjusted, logistic regression analysis indicated that higher serum levels of Vitamin A and E led to a lower risk of mycoplasma pneumoniae pneumonia (OR=0.075, 95% CI: 0.007-0.815; OR=0.854, 95% CI: 0.792-0.986). After matching, higher serum level of Vitamin E had a significantly lower risk of mycoplasma pneumoniae pneumonia (OR=0.877, 95% CI: 0.810-0.950).@*Conclusions@#The serum levels of Vitamin A didn't have a statistically significant association with mycoplasma pneumoniae pneumonia. However, we observed an obvious association between Vitamin E and mycoplasma pneumoniae pneumonia. Hence Vitamin E clinical monitoring and supplementation are vital for preventing and treating mycoplasma pneumoniae pneumonia.
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Objective To explore the risk factors of chronic cough in children.Methods A hospital-based case-control study was conducted.A total of 60 children with chronic cough and 120 non-chronic cough children were interviewed with standard questionnaires.Non-conditional multivariable logistic model was performed to analyze the risk factors.Results Among 192 children that were performed questionnaire survey,180 cases were obtained the complete data with a questionnaire response rate of 93.75％.No significant difference in age,gender,and permanent residence was found between chronic cough and control groups,respectively (P ＞0.05).As shown in multivariable logistic model,parents with sensitive history (OR =1.924),mother or father smoking (mother:OR =1.989 ; father:OR =2.156),poor ventilation (OR =27.906),and interior decoration less than 3 months stay (OR =4.652) increased the risk of chronic cough in children.Conclusions Many factors,even the domestic environmental factors,are associated with chronic cough in children.It's time to strengthen the intervention of risk factors for reducing the occurrence of chronic cough in children.