. 2016 Dec 15;194(12):1532–1540. doi: 10.1164/rccm.201604-0769OC

Table 2.

Diagnostic Benefit of CF Supplementation versus No Rpf Supplementation in Smear-Negative and Smear-Positive Individuals

Variables	Smear-Positive Correlation^*	Smear-Negative Correlation^*
CF⁺ MPN
MGIT TTP^† vs. log CF⁺ MPN	−0.54^‡ (P < 0.0001)	−0.54^‡ (P = 0.0049)
GeneXpert cycle threshold vs. log CF⁺ MPN	−0.62^‡ (P < 0.0001)	−0.74^‡ (P = 0.0004)
Rpf⁻ MPN
MGIT TTP^† vs. log Rpf⁻ MPN	−0.53^‡ (P < 0.0001)	−0.13^§ (P = 0.53)
GeneXpert cycle threshold vs. log Rpf⁻ MPN	−0.61^‡ (P < 0.0001)	−0.01^§ (P = 0.95)

Definition of abbreviations: CF = culture filtrate; MGIT = mycobacteria growth indicator tube; MPN = most probable number; Rpf = resuscitation-promoting factors; TTP = time to positivity.

Pearson coefficient.

^{^†}

TTP in days.

^{^‡}

Significant negative linear relationship between variable and log CF⁺ MPN/Rpf⁻ MPN.

^{^§}

A weak nonsignificant negative linear relationship between variable and log Rpf⁻ MPN in smear-negative patients.