Extensive pulmonary consolidation Severe pneumonia Mild pneumonia Total Sensitivity (a/a+c) Specificity (d/b+d)
Present 90(a) 4(b) 94(a+b) 83.3% 85.2%
Not present 18(c) 23(d) 41(c+d)
Total 108 (a+c) 27(b+d) 82(a+b+c+d)