Statistical analysis
Prevalence of Vitamin B12 deficiency was evaluated in Aqaba province where all the statistical analysis was done using SPSS software version 25. Categorical data are expressed in frequency and percentages, scale data are expressed in mean ±SD, chi-square test of independence was used to examine the association between categorical data. Pearson′s correlation was used to analyze the correlation between scale data, an independent t-test was used for B12 mean differences between both genders, P -values < 0.05 were considered statistically significant.