Seasonal differences in blood cell parameters and the association with cigarette smoking.

Clinical and laboratory haematology Pub Date : 1997-09-01
E Kristal-Boneh, P Froom, G Harari, J Ribak
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Abstract

Seasonal changes in red cell parameters need to be defined in order to properly interpret laboratory results. In this study blood counts were obtained prospectively in 104 healthy men (84 non-smokers and 20 smokers) aged 28-63 years during the summer and winter months. Seasonal changes in plasma volume were also calculated. In healthy non-smokers, their haemoglobin concentration and haematocrit ratio were lower in summer than in winter with a concomitant 5.5% increase in plasma volume. In smokers, there was no change in plasma volume, but haematocrit levels increased in summer. We conclude that both smoking status and seasonal variation should be taken into account in the evaluation of blood count results. Further studies are warranted to determine if our results can be extrapolated to subjects of both sexes and of various ages exposed to different climatic conditions.

血细胞参数的季节性差异及其与吸烟的关系。
需要定义红细胞参数的季节性变化,以便正确解释实验室结果。在这项研究中,在夏季和冬季对104名年龄在28-63岁的健康男性(84名不吸烟者和20名吸烟者)进行了前瞻性的血液计数。还计算了血浆容量的季节性变化。在健康的非吸烟者中,他们的血红蛋白浓度和红细胞压积比在夏季低于冬季,同时血浆容量增加5.5%。在吸烟者中,血浆容量没有变化,但红细胞压积水平在夏季增加。我们的结论是,在评估血球计数结果时,吸烟状况和季节变化都应考虑在内。进一步的研究是有必要的,以确定我们的结果是否可以外推到不同性别和不同年龄的受试者暴露在不同的气候条件下。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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