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Table 7 Results of univariable analysis. The β-coefficient represents the change in percentage area of lung field affected for every 1 unit increase in variable. For Log10TTP, this is the change in percentage area affected for every 10-fold increase in TTP

From: Pretreatment chest x-ray severity and its relation to bacterial burden in smear positive pulmonary tuberculosis

  With cavity Without cavity
β-coefficient 95% CI p value B-coefficient 95% CI p value
Age 0.09 (0.03, 0.15) 0.003 −0.0004 (−0.07, 0.07) 0.90
Sex
 Male vs. female 0.91 (−0.71, 2.5) 0.27 −0.41 (−2.49, 1.68) 0.70
Ethnicity
 Asia vs. Africa −2.33 (−3.95, − 0.73) 0.004 − 2.5 (−4.41, − 0.59) 0.01
Diabetes 1.17 (−2.27, 4.63) 0.05 1.86 (−2.04, 5.77) 0.39
 Positive vs. negative       
HIV       0.14
 Positive vs. negative 2.11 (−0.67, 4.89) 0.01 −2.78 (−6.21, 0.65) 0.11
Albumin (g/L) −0.72 (− 0.82, − 0.61) < 0.001 −0.53 (− 0.68, − 0.38) < 0.001
Body mass index − 0.55 (− 0.76, − 0.33) < 0.001 −0.13 (− 0.41, 0.19) 0.40
MGIT Log10ttp (hours) −8.87 (−13.08, − 4.67) < 0.001 − 2.41 (−7.10, 2.29) 0.31
Grade 3+ tuberculosis symptoms 2.17 (0.33, 4.02) 0.02 5.03 (1.88, 8.17) 0.002