Statistical analysis was performed using the IBM Statistical Package for Social Sciences (SPSS) software, version 25 (SPSS Inc., Chicago, IL, USA). All the findings were considered statistically significant with a p-value < 0.05.
Hypocalcemia has been defined as serum calcium concentration <8.5 mg/dL and ionized calcium as <1.18 mmol/L. We performed Kolmogorov–Smirnov test to determine the distribution in our cohort. Subsequently, we used Mann–Whitney U test, Kruskal–Wallis test, χ2, and Fisher test. To calculate odds ratio, we divided the population in two groups: hypocalcemic and non-hypocalcemic, defined as above. To be noted, the non-hypocalcemic group can be considered as a normocalcemic subpopulation, since we did not observe any hypercalcemic condition. The Mann–Whitney U test was used to calculate the p-values of our non-parametric distributions. Kuskal–Wallis test was employed to evaluate if the presence of 2 complications per patient might influence the developing of hypocalcemia. All the recorded comorbidities were analysed using the Pearson's chi-squared test to highlight statistical differences in the hypocalcemic and/or normocalcemic subpopulations.
Hypocalcemia has been defined as serum calcium concentration <8.5 mg/dL and ionized calcium as <1.18 mmol/L. We performed Kolmogorov–Smirnov test to determine the distribution in our cohort. Subsequently, we used Mann–Whitney U test, Kruskal–Wallis test, χ2, and Fisher test. To calculate odds ratio, we divided the population in two groups: hypocalcemic and non-hypocalcemic, defined as above. To be noted, the non-hypocalcemic group can be considered as a normocalcemic subpopulation, since we did not observe any hypercalcemic condition. The Mann–Whitney U test was used to calculate the p-values of our non-parametric distributions. Kuskal–Wallis test was employed to evaluate if the presence of 2 complications per patient might influence the developing of hypocalcemia. All the recorded comorbidities were analysed using the Pearson's chi-squared test to highlight statistical differences in the hypocalcemic and/or normocalcemic subpopulations.