Validation of the French version of the London Chest Activity of Daily Living scale and the Dyspnea-12 questionnaire

Figures & data

Table 1 Baseline patient characteristics and values of initial questionnaires

	Total	GOLD stage 3	GOLD stage 4
N	50	28	22
Age (years)	66.7±7.8	68.8±8.3	66.32±7.0
Weight (kg)	73.2±19.6	73.7±20.6	72.6±18.6
Height (m)	167±10.2	164.4±9.9	169.6±10.0
BMI (kg/m^2)	26.2±6.2	27.2±7.0	25.0±4.9
FEV1/FVC (%)	48.6±10.5	52.3±8.8	42.9±8.6
FEV1 (% pred)	35.7±8.8	41.1±6.2	28.7±6.4
RV (% pred)	212.4±82.9	207.0±95.1	219.9±63.4
TLC (% pred)	119.9±35.2	120.3±41.1	119.4±26.0
RV/TLC (% pred)	166.8±28.0	161.6±30.2	174.0±23.4
MMRC	2.2±1.4	1.9±1.3	2.6±1.4
SGRQ – total	49.5±16.7	45.9±16.1	54.0±16.8
SGRQ symptoms	52.1±23.2	50.1±22.5	54.7±24.3
SGRQ activity	70.8±19.5	66.8±17.0	76.0±21.7
SGRQ impact	36.1±19.0	32.6±18.6	40.6±19.0
HAD-depression	6.6±3.9	6.5±4.0	6.7±3.7
Score: 0–7 (n)	24	17	12
Score: 8–10 (n)	12	6	6
Score ≥11 (n)	9	5	4
HAD-anxiety	6.5±4.1	6.5±4.0	6.6±4.3
Score: 0–7 (n)	34	20	12
Score: 8–10 (n)	7	4	6
Score ≥11 (n)	9	4	4
LCADL	25.9±12.4	24.5±12.6	27.6±12.2
Dyspnea-12	14.5±9.1	13.2±10.4	16.2±6.9

Note: Values are expressed as mean ± SD.

Abbreviations: N, number; BMI, body mass index; FEV₁, forced expiratory volume in 1 second; FVC, forced vital capacity; % pred, percentage of predictive value; RV, residual volume; TLC, total lung volume; MMRC, Modified Medical Research Council; SGRQ, Saint-George’s Respiratory Questionnaire; HAD, Hospital Anxiety and Depression Scale; LCADL, London Chest Activity of Daily Living; GOLD, Global initiative for Obstructive Lung Disease.

Figure 1 Study flow diagram.

Figure 2 Bland–Altman plot of total score of LCADL.

Notes: Solid lines represent bias means; upper and lower dashed lines represent upper and lower limits of agreement, respectively.
Abbreviations: LCADL, London Chest Activity of Daily Living questionnaire; LCADL_1, LCADL filled out at the first consultation; LCADL_2, LCADL filled out 15 days later.

Figure 3 Bland–Altman plot of total score of Dyspnea-12.

Notes: Solid lines represent bias means; upper and lower dashed line represent upper and lower limits of agreement, respectively.
Abbreviations: D-12, Dyspnea-12; D-12_1, Dyspnea-12 filled out at the first consultation; D-12_2, Dyspnea-12 filled out 15 days later.