Skip to main content
. Author manuscript; available in PMC: 2016 Feb 12.
Published in final edited form as: Am J Respir Crit Care Med. 2000 Apr;161(4 0 1):1076–1080. doi: 10.1164/ajrccm.161.4.9903087

TABLE 2.

LINEAR REGRESSION MODELS TO PREDICT THE DAY OF LAST RAPIDLY POSITIVE SPUTUM CULTURE, BASED ON MEASURES OBTAINED DURING THE FIRST MONTH OF THERAPY EXCLUDING CULTURE*

Variable Coefficient Standard Error p Value
Constant −41.909 27.048
Antigen 85, Day 14 0.400 0.140 0.008
qAFB, Day 30 23.415 10.036 0.027
(qAFB Day 30)2 −2.907 1.551 0.071
Extent of disease 13.004 7.455 0.091
*

The results of quantitative AFB microscopy (qAFB) were best described using a second-order equation, with box x and x2 components. Extent of disease was forced into this model to allow comparison with that in Table 1. The overall significance of the regression model is 0.002, R = 0.58.