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To investigate the potential relationship between dietary flavanone intake and asthma so as to provide reference for the prevention and control of asthma.
Adults over 20 years old in the National Health and Nutrition Examination Survey (NHANES) from 2007 to 2008 were selected as research subjects. Multivariate logistic regression model was used to analyze the relationship between flavanone intake and asthma. Finally, subgroup analysis was used to explore the relationship between flavanone intake and asthma in different sex and age groups.
A total of 5 415 subjects were included, of whom 710 (13.11%) had asthma. The median intake of flavanone was 0.27 mg/d. The intake of flavanone in patients with asthma was significantly lower than that in normal people, and the difference was statistically significant (Z=10.207, P < 0.001). After adjusting for age, sex, body mass index, race, education, drinking, smoking, monthly family poverty, hypertension, and diabetes, the incidence of asthma in the highest quantile was significantly lower than that in the lowest quantile (OR=0.781, 95%CI:0.615-0.991), and the risk of asthma decreased with the increase of flavanone intake (P trend = 0.015).
There is a negative correlation between flavanone intake and asthma. Flavanone may be a protective factor for asthma, and the correlation may be more obvious in women and young and middle-aged people under 50 years old.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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