Univariable logistic regression: association of CXR score based on the affected area of the lung and presence of cavitation with two-month sputum smear.

<p><b>Model parameters: Model 1</b> constant:- 2.22, -2Log likelihood 65.9-Chi² 0.31, Hosmer and lemeshow test <0.0001, R² (Cox 0.007 and Nagelkerke 0.019). <b>Model 2</b> constant:- 3.07, -2Log likelihood 66.7-Chi² 6.37, Hosmer and lemeshow test 0.206, R² (Cox 0.002 and Nagelkerke 0.004). <b>Model 3</b> constant:- 3.77, -2Log likelihood 65-Chi² 1.67, Hosmer and lemeshow test 0.446, R² (Cox 0.013 and Nagelkerke 0.036).</p><p>Univariable logistic regression: association of CXR score based on the affected area of the lung and presence of cavitation with two-month sputum smear.