Statistical Analysis
Data was analyzed using STATA version 16. Data was reviewed for any
missing information, illegible responses, and any other inconsistencies
before the analysis. Qualitative data were reported as frequencies and
percentages. Quantitative data were reported as means with standard
deviations and/or medians with inter quartile ranges. After checking
normality of qualitative data, we carried out Wilcoxon signed-rank test
to analyze the median significant difference of POCUS interpretation
time with auscultation time, CO2 detection time, and chest X-ray time.
Specificity statistical analysis was carried out between POCUS users and
expert interpretation. Kappa statistical analysis was applied to check
agreement between the POCUS expert and participant observation. P-values
< 0.05 were considered as significant.