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. 2017 Jun 6;12(6):e0176354. doi: 10.1371/journal.pone.0176354

Table 4. Logistic regression analyses to identify the variables that associated with primary MDR TB.

Variable OR 95%CI P
Absence of calcified lymph nodes 8.95 1.94–41.29 <0.01
Extent of cavities 1.26 1.02–1.56 0.03
Age 0.98 0.96–1.00 0.03

OR, odds ratio; CI, confidence interval