目的横断面研究不同性别的糖尿病患者多种饮食模式对全因死亡的影响和差异。方法分析来自美国国家健康和营养检查调查(National Health and Nutrition Examination Survey,NHANES)数据库中20002名参与者(3737名糖尿病患者)。用COX比例...目的横断面研究不同性别的糖尿病患者多种饮食模式对全因死亡的影响和差异。方法分析来自美国国家健康和营养检查调查(National Health and Nutrition Examination Survey,NHANES)数据库中20002名参与者(3737名糖尿病患者)。用COX比例风险回归模型分析饮食质量评分与不同性别糖尿病患者全因死亡的关系。分层分析评估其他因素是否与饮食模式评分有相互作用。结果在74个月的中位随访期内,有512例死亡记录,男性311例,女性201例。饮食评分较高的糖尿病患者组对比较低组调整风险比如下:饮食炎症指数[男性:风险比(hazard ratio,HR)=1.22,P=0.084;女性HR=1.00,P=0.818];地中海饮食评分(男性:HR=0.99,P=0.873;女性HR=0.79,P=0.027);健康饮食指数-2020(男性HR=1.00,P=0.956;女性HR=0.83,P=0.046)。饮食评分对糖尿病患者死亡风险的影响是独立的,未发现饮食评分与其他变量存在内在的相互作用。结论糖尿病人群中,地中海饮食和健康饮食指数-2020与女性较低的死亡风险相关,而在男性未发现明显的关联。展开更多
We experimentally demonstrated the use of intelligent impairment equalization(IIE)for microwave downconversion link linearization in noncooperative systems.Such an equalizer is realized based on an artificial neural n...We experimentally demonstrated the use of intelligent impairment equalization(IIE)for microwave downconversion link linearization in noncooperative systems.Such an equalizer is realized based on an artificial neural network(ANN).Once the training process is completed,the inverse link transfer function can be determined.With the inverse transformation for the detected signal after transmission,the third-order intermodulation distortion components are suppressed significantly without requiring any prior information from an input RF signal.Furthermore,fast training speed is achieved,since the configuration of ANN-based equalizer is simple.Experimental results show that the spurious-free dynamic range of the proposed link is improved to 106.5 dB·Hz^(2/3),which is 11.3 dB higher than that of a link without IIE.Meanwhile,the training epochs reduce to only five,which has the potential to meet the practical engineering requirement.展开更多
文摘目的横断面研究不同性别的糖尿病患者多种饮食模式对全因死亡的影响和差异。方法分析来自美国国家健康和营养检查调查(National Health and Nutrition Examination Survey,NHANES)数据库中20002名参与者(3737名糖尿病患者)。用COX比例风险回归模型分析饮食质量评分与不同性别糖尿病患者全因死亡的关系。分层分析评估其他因素是否与饮食模式评分有相互作用。结果在74个月的中位随访期内,有512例死亡记录,男性311例,女性201例。饮食评分较高的糖尿病患者组对比较低组调整风险比如下:饮食炎症指数[男性:风险比(hazard ratio,HR)=1.22,P=0.084;女性HR=1.00,P=0.818];地中海饮食评分(男性:HR=0.99,P=0.873;女性HR=0.79,P=0.027);健康饮食指数-2020(男性HR=1.00,P=0.956;女性HR=0.83,P=0.046)。饮食评分对糖尿病患者死亡风险的影响是独立的,未发现饮食评分与其他变量存在内在的相互作用。结论糖尿病人群中,地中海饮食和健康饮食指数-2020与女性较低的死亡风险相关,而在男性未发现明显的关联。
基金supported in part by the National Key Research and Development Program of China(No.2018YFB2201702)the National Natural Science Foundation of China(Nos.U21A20507 and 62005228)the Fundamental Research Funds for the Central Universities(No.2682021CX050)。
文摘We experimentally demonstrated the use of intelligent impairment equalization(IIE)for microwave downconversion link linearization in noncooperative systems.Such an equalizer is realized based on an artificial neural network(ANN).Once the training process is completed,the inverse link transfer function can be determined.With the inverse transformation for the detected signal after transmission,the third-order intermodulation distortion components are suppressed significantly without requiring any prior information from an input RF signal.Furthermore,fast training speed is achieved,since the configuration of ANN-based equalizer is simple.Experimental results show that the spurious-free dynamic range of the proposed link is improved to 106.5 dB·Hz^(2/3),which is 11.3 dB higher than that of a link without IIE.Meanwhile,the training epochs reduce to only five,which has the potential to meet the practical engineering requirement.
