目的：分析尿毒症维持性血液透析（MHD）患者红细胞相关指标、铁代谢指标水平及其同肾性贫血的关系。方法：选取我院2024年10月-2025年10月期间尿毒症MHD患者70例为研究对象，依照其是否发生肾性贫血分为贫血组（49例）、无贫血组（21例），对比两组患者红细胞相关指标以及等铁代谢指标，同时对比不同贫血严重程度患者各项指标水平差异，并分析尿毒症MHD患者肾性贫血的相关影响因素。结果：贫血组、无贫血组患者红细胞血红蛋白浓度（MCHC）、总铁结合力（TIBC）水平无较大差异（P＞0.05），贫血组患者网织红细胞计数（Ret）、血清铁蛋白（SF）、转铁蛋白（TRSF）水平低于无贫血组、平均红细胞体积（MCV）水平高于无贫血组（P＜0.05）；轻度组、中度组、重度组患者Ret、MCV、SF、TRSF差异显著（P＞0.05）；不同贫血严重程度患者MCHC、TIBC水平比较，差异无统计学意义（P＞0.05）；多因素Logistic回归结果显示，Ret（OR=0.2063）、MCV（OR=4.152）、SF（OR=0.341）、TRSF（OR=0.281）是尿毒症MHD患者发生肾性贫血的重要影响因素（P＜0.05）。结论：尿毒症MHD患者存在较高的肾性贫血风险，且不同贫血程度患者的Ret、MCV及SF、TRSF等指标水平存在差异性，亦是患者发生肾性贫血的重要影响因素。

Objective: To analyze the levels of red blood cell related indicators, iron metabolism indicators and their relationship with renal anemia in uremic patients with maintenance hemodialysis (MHD). Methods: 70 cases of uremic MHD patients in our hospital from October 2024 to October 2025 were selected as the research object, and were divided into anemia group (49 cases) and non anemia group (21 cases) according to whether renal anemia occurred. The red blood cell related indexes and iron metabolism indexes of the two groups were compared, and the differences of various indexes in patients with different anemia severity were compared, and the related influencing factors of renal anemia in uremic MHD patients were analyzed. Results: there was no significant difference in the levels of erythrocyte hemoglobin concentration (MCHC) and total iron binding capacity (TIBC) between anemia group and non anemia group (P>0.05). The levels of reticulocyte count (RET), serum ferritin (SF), transferrin (trsf) in anemia group we

目的：分析尿毒症维持性血液透析（MHD）患者红细胞相关指标、铁代谢指标水平及其同肾性贫血的关系。方法：选取我院2024年10月-2025年10月期间尿毒症MHD患者70例为研究对象，依照其是否发生肾性贫血分为贫血组（49例）、无贫血组（21例），对比两组患者红细胞相关指标以及等铁代谢指标，同时对比不同贫血严重程度患者各项指标水平差异，并分析尿毒症MHD患者肾性贫血的相关影响因素。结果：贫血组、无贫血组患者红细胞血红蛋白浓度（MCHC）、总铁结合力（TIBC）水平无较大差异（P＞0.05），贫血组患者网织红细胞计数（Ret）、血清铁蛋白（SF）、转铁蛋白（TRSF）水平低于无贫血组、平均红细胞体积（MCV）水平高于无贫血组（P＜0.05）；轻度组、中度组、重度组患者Ret、MCV、SF、TRSF差异显著（P＞0.05）；不同贫血严重程度患者MCHC、TIBC水平比较，差异无统计学意义（P＞0.05）；多因素Logistic回归结果显示，Ret（OR=0.2063）、MCV（OR=4.152）、SF（OR=0.341）、TRSF（OR=0.281）是尿毒症MHD患者发生肾性贫血的重要影响因素（P＜0.05）。结论：尿毒症MHD患者存在较高的肾性贫血风险，且不同贫血程度患者的Ret、MCV及SF、TRSF等指标水平存在差异性，亦是患者发生肾性贫血的重要影响因素。

To analyze the levels of red blood cell related indicators, iron metabolism indicators and their relationship with renal anemia in uremic patients with maintenance hemodialysis (MHD). Methods: 70 cases of uremic MHD patients in our hospital from October 2024 to October 2025 were selected as the research object, and were divided into anemia group (49 cases) and non anemia group (21 cases) according to whether renal anemia occurred. The red blood cell related indexes and iron metabolism indexes of the two groups were compared, and the differences of various indexes in patients with different anemia severity were compared, and the related influencing factors of renal anemia in uremic MHD patients were analyzed. Results: there was no significant difference in the levels of erythrocyte hemoglobin concentration (MCHC) and total iron binding capacity (TIBC) between anemia group and non anemia group (P>0.05). The levels of reticulocyte count (RET), serum ferritin (SF), transferrin (trsf) in anemia group were lower than those in non anemia group, and the level of mean corpuscular volume (MCV) was higher than that in non anemia group (P<0.05); There were significant differences in RET, MCV, SF and trsf among mild group, moderate group and severe group (P>0.05); There was no significant difference in MCHC and TIBC levels among patients with different anemia severity (P>0.05); Multivariate logistic regression results showed that RET (or=0.2063), MCV (or=4.152), SF (or=0.341), trsf (or=0.281) were important influencing factors of renal anemia in uremic MHD patients (P<0.05).Conclusion: Uremic MHD patients have a higher risk of renal anemia, and there are differences in the levels of Ret, MCV, SF, TRSF and other indicators among patients with different degrees of anemia, which are also important influencing factors for the occurrence of renal anemia in patients.

       目的  探讨晚期早产儿中小于胎龄儿（SGA）与适于胎龄儿（AGA）出生时的铁代谢状态。方法  选取2020年1—12月合肥市妇幼保健院收治的150例晚期早产儿（胎龄34～36⁺⁶周）作为研究对象。按照出生体质量和胎龄将早产儿分为SGA组（36例）和AGA组（114例），分析比较两组早产儿出生时的铁代谢状态，并应用多因素线性回归分析血清铁的影响因素。结果  与AGA组相比，SGA婴儿的更低的血清铁［14.5 μmol /L （11.4，17.1） vs 16.4 μmol /L（14.1，18.4），P=0.004］、更低的血清铁蛋白［135.6 μg/L（101.8，176.2） vs 172.5 μg/L（123.0，218.3），P=0.009］和更低的总铁结合力［30.4 μmol/L（26.8，34.9）vs 35.4 μmol/L（29.5，44.6），P=0.001］。两组早产儿的血红蛋白、平均红细胞体积、平均红细胞血红蛋白含量和平均红细胞血红蛋白浓度比较差异均无统计学意义（P＞0.05）。在早产儿围生期特征中，胎盘异常（β= –1.949，P=0.009）和母亲糖尿病的发生（β= –2.324，P=0.001）与血清铁水平呈负相关。结论  与早产AGA相比，早产SGA铁储备水平较低，适量补充铁元素对小于胎龄新生儿身体发育有促进作用。

      Objective   To explore the iron metabolism status in late preterm infants who are small for gestational age（SGA）compared to those appropriate for gestational age（AGA）at birth．Methods   A total of 150 late preterm infants（gestational age 34 to 36⁺⁶ weeks）admitted to the Maternal and Child Health Hospital of Hefei from January to December 2020 were selected as the study subjects．The preterm infants were divided into the SGA group（36 cases）and the AGA group（114 cases）according to birth weight and gestational age．The iron metabolism status at birth was analyzed and compared between the two groups of preterm infants，and multiple linear regression analysis was applied to identify the influencing factors of serum iron．Results   Compared with the AGA group，SGA infants had lower serum iron（14.5［11.4，17.1］ vs 16.4 ［14.1，18.4］，P=0.004），lower serum iron protein（135.6［101.8，176.2］ vs 172.5［123.0，218.3］，P=0.009），and lower total iron binding capacity（30.4［26.8，34.9］ vs35.4［29.5，44.6］P=0.001）．There were no statistically significant differences in hemoglobin，mean corpuscular volume，mean corpuscular hemoglobin，and mean corpuscular hemoglobin concentration between the two groups of preterm infants（P＞0.05）．Among the perinatal characteristics of preterm infants，placental abnormalities（β= –1.949，P=0.009）and the occurrence of maternal diabetes（β= –2.324，P=0.001）were significantly negatively correlated with serum iron levels．Conclusions  Compared with preterm infants appropriate for gestational age，preterm infants who are small for gestational age have lower iron reserves at birth．Adequate supplementation of iron has a promoting effect on the physical development of small for gestational age newborns．