Analysis of differences in hemoglobin before and after delivery in patients from Tulcan, Ecuador

Authors

  • Edison Sotalin Nivela
  • Carlos Valverde González

Keywords:

Maternal hemoglobin, Wilcoxon, anemia, obstetrics, Kolmogorov-Smirnov.

Abstract

Introduction: The hemoglobin concentration in the mother is a crucial element to evaluate her health, since the presence of anemia or other hemoglobin-related disorders can significantly affect her well-being and the development of the fetus.

Objective: To analyze significant differences in hemoglobin values before and after delivery in patients from a hospital in Tulcán, Ecuador.

Methods: The study was relational, longitudinal, prospective, observational and analytical. The sample consisted of 159 patients attending a hospital in Tulcán, Ecuador. The Wilcoxon signed-rank test was used.

Results: The Kolmogorov-Smirnov test indicated that the sample distribution did not conform to a normal distribution. The asymptotic significance, which was less than 0.001, indicated that there was a statistically significant difference between the observed distribution and the normal distribution. There were 143 cases (89.94 %) where maternal hemoglobin after the studied period was lower than maternal hemoglobin before, with a mean range of 85.71 and a total sum of ranges of 12256.00. The Z-statistic value was quite negative and its significance was less than 0.001, indicating that there was a significant difference between the maternal hemoglobin measurements before and after the studied period.

Conclusions: The null hypothesis was rejected and the alternative hypothesis was accepted. This showed that there was statistical evidence that there was a significant difference in maternal hemoglobin levels before and after the period analyzed.

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Published

2024-04-12

How to Cite

1.
Sotalin Nivela E, Valverde González C. Analysis of differences in hemoglobin before and after delivery in patients from Tulcan, Ecuador. Rev Cubana Inv Bioméd [Internet]. 2024 Apr. 12 [cited 2026 Feb. 10];43. Available from: https://revibiomedica.sld.cu/index.php/ibi/article/view/3287