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  Indian J Med Microbiol
 

Figure 1: Increasing pleural line thickness had a statistically significant inverse correlation with forced vital capacity percent predicted (r = −0.345, P < 0.05), pO2 (r = −0.335, P < 0.01), SpO2 at rest (r = −0.444, P < 0.01), 6-min walk distance (r = −0.554, P < 0.001) and distance-saturation product (r = −0.572, P < 0.001)

Figure 1: Increasing pleural line thickness had a statistically significant inverse correlation with forced vital capacity percent predicted (<i>r</i> = −0.345, <i>P</i> < 0.05), pO<sub>2</sub> (<i>r</i> = −0.335, <i>P</i> < 0.01), SpO<sub>2</sub> at rest (<i>r</i> = −0.444, <i>P</i> < 0.01), 6-min walk distance (<i>r</i> = −0.554, <i>P</i> < 0.001) and distance-saturation product (<i>r</i> = −0.572, <i>P</i> < 0.001)