Table 4.

Statistical analysis of dropouts versus non-dropouts FVC throughout time.

		n	Mean±SD (%)	Statistical significance
FVC (%) baseline	Non-dropout	14	67.64±10.40	p=0.021
	Dropout	17	57.12±11.58
FVC (%) first year	Non-dropout	11	76.00±18.39	p=0.005
	Dropout	9	50.78±12.69
FVC (%) second year	Non-dropout	6	76.00±12.44	p=0.061
	Dropout	5	54.40±5.55
FVC (%) third year	Non-dropout	3	86.33±16.44	p=0.400
	Dropout	2	4800±11.31

Significance p<0.05 (95% CI). A dropout was a patient who discontinued pirfenidone at any time.

FVC, forced vital capacity.