PMID: 22335010Feb 18, 2012Paper

Reliability of self-reported maternal smoking during early lactation period

Przegla̧d lekarski
Maciej ZagierskiBarbara Kamińska

Abstract

Smoking cigarettes is very common among lactating women. The objective evaluation of an exposure to cigarette smoke is needed, as cotinine concentration. On many research a questionnaire is the only determinant of fact and intensification of smoking. The aim of this research was to establish a reliability of the questionnaire concerning cigarette smoking among lactating mothers by analyzing cotinine/creatinine ratio. In 51 lactating mothers (participants of the research on oxidative stress in Obstetrics Departments on 3rd day post partum) during check-up visit, on 30th day post partum a questionnaire concerning smoking cigarettes before, during pregnancy and after childbirth, and amount of cigarettes smoked was made. Samples of matutinal urine were deep freezed in - 700 till cotinine was evaluated immunoenzymatically. Women were divided into groups: I of non-smokers (32 women), II of smokers (19 women). Statistical analysis was made by means of unparametric test U Mann-Whitney. Average cotinine/creatinine ratio was 33,8 ng/mg in group I; 1275.9 ng/mg in group II. Specificity and sensitivity of data earned by virtue of statement of correspondents was 81% and 89%. Test of cotinine concentration in urine demonstrated 100% sensitiv...Continue Reading

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