Comparative statistics
In the statistical comparison, there was found a significant difference in the oxygenation index at admission presented by lactated vs. non-lactated patients (p 0.002), as well as the presence of crackles p = 0.029 (95% CI 0.502-0.095) and wheezing p = 0.043 (95% CI 0.522-0.980). (Table 3)
The comparative analysis of the medians of these averages was performed, finding a statistically significant difference between the levels of specific IgA and the personal history of repetitive respiratory tract infections (defined according to the Mexican CPG as more than 3 respiratory infections per year) (p = 0.018). Differences were also found in symptoms such as: dry cough (figure 2), presence of severity signs such as thoracoabdominal dissociation (figure 3), (p = 0.043, p = 0.044 respectively). (Table 4)