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Objective To investigate the current status of urinary incontinence (UI) at the third trimester of pregnancy among primiparas in Guangdong Province.Methods The convenience sampling method was adopted to conduct the retrospective analysis on 714 primiparas in 3 hospitals of Guangdong Province from June 2015 to March 2016.International Consultation on Incontinence Questionnaire Urinary Incontinence Short-Form Chinese was used to investigate the occurrence status of UI at the third trimester of pregnancy among primiparas.And its influencing factors were analyzed.Results Among 714 primiparas,192 cases (26.9％) developed UI during the third trimester of pregnancy,in which stress UI accounted for 67.2％ (129/192).The prepregnancy BMI and abortion had statistical difference between.the UI patients and non-UI patients (P＜0.05).The multivariate Logistic regression results showed that pre-pregnancy BMI was correlated with UI at the trimester stage of pregnancy (OR =1.077,P＜0.05).Conclusion Pre-pregnancy BMI might be an independent risk factor of UI occurrence at the third trimester of pregnancy.
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AIM: To use secondary regression coherent design to explore the extraction parameters of fruits of Cnidiunm by supercritical CO_2 extraction. METHODS: Extraction pressure,extraction temperature,isolation pressure,isolation temperature Ⅰ and Ⅱ were viewed as factors. RESULTS: The best technological conditions were: extractive kettle pressure was 20 MPa,extractive kettle temperature was at 40(?C);separate kettle Ⅰ pressure was 15 MPa,separate kettle Ⅰ temperature was at 65(?C);separate kettle Ⅱ pressure was 5 MPa,separate ketle Ⅱ temperature was at 38(?C);CO_2 flow rate was 18 L/H,extractive time was 80 min. CONCLUSION: Under these conditions,the separate rate of the extractives from fruits of Cnidium Monnieri(L.) Cuss.could be(24.03%).Using secondary regression coherent design could naturally react the influence of the rule on the every factor to the goal function.