A Systematic Review of Reported Cost for Smear and Culture Tests during Multidrug-Resistant Tuberculosis Treatment
Figure 5
Summary of estimates of the three types of tests.
(1) In each boxplot, dots represent outliers which are beyond the interval of (Q1–1.5*IQR, Q3+1.5*IQR): Q1 is the 25th percentile, Q3 is the 75th percentile, IQR is the interquartile range (75%–25%). (2) The five values listed beside each boxplot represent upper adjacent value (maximum value after excluding outliers), 75th percentile, median (50%), 25th percentile, and lower adjacent value (minimum value after excluding outliers), respectively. For instance, in Plot 5a, for estimates of smear test alone, $3.54 (upper adjacent value) is the maximum value excluding three outliers. $2.54 is the value at the 75th percentile. $1.67 is the value of median. $1.21 is the value at the 25th percentile. $0.26 (lower adjacent value) is the minimum value excluding outliers. (3) For Plot 5c, the estimates of combined test include the imputed values.