2.3.2. Statistical data analysis
Statistical data were represented in the terms of ‘‘range mean
standard deviation (±SD) & percentages”. For parametric
data, Comparisons were done by using the Student’s t-test.
For the non-parametric data comparison, the Chi Square
(X2) test was done. A probability value calculated and when
less than 0.05 was then considered significant. Accuracy of
the test was evaluated using statistical analysis and calculated
using specificity, sensitivity, negative predictive value (NPV)
and positive predictive value (PPV) as well as the overall accuracy