目的探讨胸腺指数及外周血绝对淋巴细胞计数(ALC)与感染性肺炎新生儿预后的关系。方法回顾性分析203例感染性肺炎新生儿的临床资料。根据预后将患儿分为预后不良组和预后良好组。比较两组患儿的一般临床资料、胸腺指数、外周血ALC。采...目的探讨胸腺指数及外周血绝对淋巴细胞计数(ALC)与感染性肺炎新生儿预后的关系。方法回顾性分析203例感染性肺炎新生儿的临床资料。根据预后将患儿分为预后不良组和预后良好组。比较两组患儿的一般临床资料、胸腺指数、外周血ALC。采用多因素Logistic回归模型分析感染性肺炎新生儿预后的影响因素。采用受试者工作特征(ROC)曲线分析胸腺指数、外周血ALC单独及联合预测感染性肺炎新生儿预后不良的效能。结果203例患儿中,共42例预后不良(预后不良组),共161例预后良好(预后良好组),预后不良发生率为20.69%。预后不良组患儿出生后1 min Apgar评分≤7分占比、新生儿重症监护病房住院时间、肺部超声评分、治疗前血清白细胞介素6(IL-6)和降钙素原水平高于或长于预后良好组,胸腺指数、外周血ALC低于预后良好组(P<0.05)。多因素Logistic回归分析结果显示,出生后1 min Apgar评分、肺部超声评分、治疗前血清降钙素原水平增加是感染性肺炎新生儿预后不良的独立危险因素,胸腺指数、外周血ALC增加则是保护因素(P<0.05)。ROC曲线分析结果显示,胸腺指数、外周血ALC单独及联合预测感染性肺炎新生儿预后不良的曲线下面积分别为0.816、0.800、0.890,二者联合预测的曲线下面积大于胸腺指数、外周血ALC单独预测的曲线下面积(P<0.05)。结论胸腺指数、外周血ALC降低可增加感染性肺炎新生儿预后不良的发生风险。二者对此类患儿的预后具有一定的预测效能,且二者联合应用时预测效能较高。展开更多
Joint user pairing and power allocation approach is investigated to meet the rate requirement of enhanced mobile broadband(eMBB)slicing and delay constraint of ultra-reliable low-latency communication(URLLC)slicing si...Joint user pairing and power allocation approach is investigated to meet the rate requirement of enhanced mobile broadband(eMBB)slicing and delay constraint of ultra-reliable low-latency communication(URLLC)slicing simultaneously in downlink non-orthogonal multiple access(NOMA)system.For maximizing the proportional fairness among mobile terminals,a two-step algorithm is proposed.For a given user sets,the optimal user pairing sets and the factor of the power allocation in a group were obtained to ensure the quality of service(QoS)and the isolation between different types of slicings.Simulation results show that the proposed joint algorithm can provide better throughput than orthogonal multiple access(OMA).展开更多
文摘目的探讨胸腺指数及外周血绝对淋巴细胞计数(ALC)与感染性肺炎新生儿预后的关系。方法回顾性分析203例感染性肺炎新生儿的临床资料。根据预后将患儿分为预后不良组和预后良好组。比较两组患儿的一般临床资料、胸腺指数、外周血ALC。采用多因素Logistic回归模型分析感染性肺炎新生儿预后的影响因素。采用受试者工作特征(ROC)曲线分析胸腺指数、外周血ALC单独及联合预测感染性肺炎新生儿预后不良的效能。结果203例患儿中,共42例预后不良(预后不良组),共161例预后良好(预后良好组),预后不良发生率为20.69%。预后不良组患儿出生后1 min Apgar评分≤7分占比、新生儿重症监护病房住院时间、肺部超声评分、治疗前血清白细胞介素6(IL-6)和降钙素原水平高于或长于预后良好组,胸腺指数、外周血ALC低于预后良好组(P<0.05)。多因素Logistic回归分析结果显示,出生后1 min Apgar评分、肺部超声评分、治疗前血清降钙素原水平增加是感染性肺炎新生儿预后不良的独立危险因素,胸腺指数、外周血ALC增加则是保护因素(P<0.05)。ROC曲线分析结果显示,胸腺指数、外周血ALC单独及联合预测感染性肺炎新生儿预后不良的曲线下面积分别为0.816、0.800、0.890,二者联合预测的曲线下面积大于胸腺指数、外周血ALC单独预测的曲线下面积(P<0.05)。结论胸腺指数、外周血ALC降低可增加感染性肺炎新生儿预后不良的发生风险。二者对此类患儿的预后具有一定的预测效能,且二者联合应用时预测效能较高。
基金supported by the Headquarters Science and Technology Project of State Grid Corporation of China(5700202019174A-0-0-00)。
文摘Joint user pairing and power allocation approach is investigated to meet the rate requirement of enhanced mobile broadband(eMBB)slicing and delay constraint of ultra-reliable low-latency communication(URLLC)slicing simultaneously in downlink non-orthogonal multiple access(NOMA)system.For maximizing the proportional fairness among mobile terminals,a two-step algorithm is proposed.For a given user sets,the optimal user pairing sets and the factor of the power allocation in a group were obtained to ensure the quality of service(QoS)and the isolation between different types of slicings.Simulation results show that the proposed joint algorithm can provide better throughput than orthogonal multiple access(OMA).
