Table 4.

Relationships between 6MWD or peak work rate and HRQoL scores, pulmonary function tests and measures of physical activity (r-values)

Variable	ARPD n=25
	6MWD	Peak work rate
FVC, % pred	0.52†	0.59†
DLCO, % pred	0.50‡	0.64*
Daily steps	0.38	0.24
Daily METs	0.45‡	0.22
Daily energy expenditure	0.06	0.25
SGRQ Total	−0.57†	−0.71*
SGRQ Activity	−0.50 ‡	−0.70*

*p <0.001, ^†p <0.01, ^‡p<0.05.

ARPD = asbestos related pleural disease; n = number; 6MWD = six-minute walk distance; FVC = forced vital capacity; % pred = percentage of predicted value; D_LCO = diffusing capacity for carbon monoxide; METs = metabolic equivalent; SGRQ = St George’s Respiratory Questionnaire.