Association between six-minute walk test parameters and the health-related quality of life in patients with pulmonary Mycobacterium avium complex disease

Table 5 Multivariate analysis for predictors of 36-Item Short Form Health Survey and St George’s Respiratory Questionnaire scores for patients with pulmonary Mycobacterium avium complex disease (n = 103)

HRQL	Determinants	P-value	Cumulative R², %
SGRQ scores
Symptoms	%FVC	0.0002	14.6
	Sex	0.0076	21.2
	BMI	0.0303	27.9
Activity	DSP	< 0.0001	33.5
	FBS	< 0.0001	51.3
	BMI	0.0248	54.0
Impacts	FBS	< 0.0001	20.6
	%FVC	0.0020	28.7
	6MWD	0.0192	33.0
	BMI	0.0048	38.9
Total	FBS	< 0.0001	24.3
	6MWD	< 0.0001	39.2
	BMI	0.0005	47.0
	%FVC	0.0483	49.4
SF-36
PCS	FBS	< 0.0001	22.4
	6MWD	< 0.0001	36.2
	Age	0.0014	43.2
	Sex	0.0179	46.8
	Disease duration	0.0462	49.2

6MWD six-minute walk distance, 6MWT six-minute walk test, BMI body mass index, DA desaturation area, DSP distance-saturation product, FEV₁ forced expiratory volume in 1 s, FBS final Borg scale, FVC forced volume capacity, PCS physical component summary, SGRQ St. George’s Respiratory Questionnaire, SF-36 36-Item Short Form Health Survey, SpO₂ oxygen saturation by pulse oximetry

ISSN: 1471-2466