High burden of symptoms reported among patients diagnosed with chronic obstructive pulmonary disease (COPD) in Greenland after introducing the COPD Assessment Test in clinical practice

Figures & data

Figure 1. Map illustrating the places where the CAT has been used.

Figure 2. Frequency distribution histogram of CAT score (n = 250).

Figure 3. Scatter plot of the correlation between the CAT score and FEV1/FVC (n = 250).

Figure 4. Scatter plot of the correlation between the CAT score and FEV1% of expected (n = 250).

Table 1. Basic characteristics of patients with COPD with a registered CAT-score.

	Men		Women			Total		Correlation coefficient (R) with CAT-score
	N	Mean (SD)	N	Mean (SD)	p	N	Mean (SD)	R	p
Age (years)	130	64 (7.4)	120	62 (8.4)	0.016	250	63 (8.0)	−0.085	0.180
Weight (kilo)	130	81 (21.1)	120	67 (17.3)	<0.001	250	74 (20.6)	−0.200	0.002
Height (cm)	130	172 (8.5)	120	156 (7.1)	<0.001	250	164 (11.2)	−0.046	0.470
BMI (kg/m^2)	130	27 (6.8)	120	27 (6.5)	0.989	250	27 (6.6)	−0.210	0.001
CAT score	130	16 (7.9)	120	17 (8.1)	0.410	250	17 (8.0)	-	-
FEV1 (L)	130	2.2 (0.8)	120	1.6 (0.5)	<0.001	250	1.9 (0.7)	−0.200	0.002
FEV1%)	130	67 (22.3)	120	69 (18.9)	0.301	250	68 (20.7)	−0.220	<0.001
FVC (L)	130	3.6 (1.0)	120	2.5 (0.6)	<0.001	250	3.1 (1.0)	−0.130	0.041
FVC (%)	130	86 (21.6)	120	84 (17.3)	0.463	250	85 (19.6)	−0.150	0.018
FEV1/FVC-ratio (%)	130	58 (11.0)	120	64 (10.7)	<0.001	250	61 (11.3)	−0.170	0.008

N = number of patients, SD = standard deviation, P = p-values.

P values below 0.05 are in bold.