Symptoms of depression impact the course of lung function in adolescents and adults with cystic fibrosis

BMC Pulmonary Medicine

Table 1 Lung function (FEV ₁ %) at baseline among the study sample and subgroups

	Study sample (n = 473)	FEV₁% ≤ 40%; depressed (n = 21)	FEV₁% ≤ 40%; not depressed (n = 68)	FEV₁% > 40%; depressed (n = 17)	FEV₁% > 40%; not depressed (n = 367)
Range	13.7-137.3	23.1-39.0	13.7-39.7	40.4-76.5	40.1-137.3
M	66.2	32.2	31.4	59.6	74.8
SD	24.7	4.8	6.5	11.1	20.0
≤40%	89 (18.8%)
>40%	384 (81.2%)

ISSN: 1471-2466