Survival analysis of patients with pneumoconiosis followed in occupational medicine clinics: 10 years experience

BMC Pulmonary Medicine

Table 4 Association of pulmonary function test parameters with survival (Univariate Analysis)*

Variables	Mean (±) or Median value [IQR]	Surviving patients	Deceased patients	p
FEV1 (ml)	3242 (± 752)	3261 (± 742)	2177 (± 554)	0.001
FEV1 (%)	86 [20]	86 [19]	67 [45]	0.001
FVC (ml)	4077 (± 876)	4108 (± 846)	2546 (± 1010)	0.001
FVC (%)	90 [19]	90 [19]	69 [17]	0.001
FEV1/FVC	79 [10]	79 [10]	71 [23]	0.002
DLCO	80 [34]	-	-	-

Note: FEV1 Forced Expiratory Volume 1, FVC Forced Vital Capacity, DLCO Diffusion Lung Capacity for Carbon Monoxide
*Data presented as mean ± SD if normally distributed and median refers to Interquartile Range if not normally distributed

ISSN: 1471-2466