目的 了解大连市高校学生外卖的使用情况及对外卖安全性的认知,提高大学生对外卖塑料包装可能造成的健康危害和环境污染的认识。方法 采用分层抽样的方法,于2017年11月对大连市4所高校共800名学生进行使用外卖和对外卖安全性的认知调查,采用SPSS 20.0软件分析数据。结果 有效调查766人,其中77.0 %的大学生有订外卖的习惯,男、女生订外卖的行为差异无统计学意义(P > 0.05)。不同学校学生订外卖的行为差异有统计学意义(P < 0.05),医科院校为84.1 %,师范院校为80.6 %,财经院校为78.4 %,理工院校为65.8 %。86.0 %的大学生对外卖包装的安全性认知得分低于2分,男生得分(Objective To examine the consumption of take-out food and the cognition on packaging safety of take-out food among university students in Dalian city for improving knowledge on potential health risk and environmental pollution caused by plastic packaging of take-out food.Methods We conducted a self-administered anonymous questionnaire survey among 800 students selected in 4 universities in Dalian city using stratified cluster sampling in November 2017. SPSS 20.0 was used to process and analyze the data collected.Results Of 766 students with eligible responses, 77.0% reported the consumption of take-out food. There was no significant gender difference in reported rate of take-out food consumption (P > 0.05); but the reported rate differed significantly among the students in different universities (P < 0.05), with the rate of 84.1%, 80.6%, 78.4%, and 65.8% among the students in medical, normal, financial, and science and engineering university (P < 0.05). Among the students, 86.0% were graded a score of less than 2 for a total scale of 8 for knowledge on packaging safety of take-out food; the boy students had a significantly higher mean score than the girl students (目的 探索上海市50岁以上残疾人群高血压及糖尿病的患病率,共病情况及风险因素。方法 采用整群抽样方法对上海市某残疾人定点健康保健医院,2018年2月-2018年12月的6 195例50岁以上残疾人的健康体检信息进行回顾性调查分析,内容包含研究对象一般人口学信息、残疾类型、残疾等级、高血压和糖尿病患病情况及血液生化检测指标。研究对象按高血压和糖尿病患病人数分为三级,采用有序多分类Logistic回归分析模型对研究对象高血压和糖尿病共病的风险因素进行分析。结果 6 195例残疾人的年龄为(63.9±6.9)岁,男性3 313人,占比53.5%;肢体残疾3 735人,占比60.3%。高血压标准化患病率为48.0%,糖尿病标准化患病率为13.4%。高血压及糖尿病共病者565人,占比9.12%。按共病分类比较,性别、年龄、文化程度、残疾类型、BMI、TG、胆固醇、尿酸及肌酐水平差异有统计学意义(均有P < 0.05)。有序多分类Logistic回归分析结果显示,男性、高龄、肢体残疾、超重或肥胖、TG超标、尿酸及肌酐水平异常是残疾人高血压及糖尿病共病的风险因素。结论 残疾人群高血压及糖尿病共病患病率较高,尤其是肢体残疾的患者。应关注体重、脂代谢、尿酸等指标的变化,针对不同残疾类型制定精准的防控策略。相似文献