Table 2

Subjects’ characteristics at baseline

	ONS	Snacks	P value*
	n=19	n=15	P value*
Sex
Male†	32	27	0.755
Female†	68	73	0.755
Age (years)‡	72 (8)	73 (8)	0.852
Height (cm)‡	167 (11)	164 (10)	0.473
Weight (kg)‡	54 (10)	49 (10)	0.170
Body mass index (kg/m²)‡	19.4 (4.1)	18.0 (2.7)	0.271
Body fat mass (kg)§	8.0 (3.3 to 16.2)	8.7 (3.2 to 10.1)	0.781
Fat-free mass (kg)‡	43.6 (10.5)	39.9 (8.5)	0.277
Fat-free mass index (kg/m²)‡	13.0 (2.8)	12.1 (1.9)	0.280
Lung function
FEV₁ (% of predicted)‡	37.2 (16.3)	37.3 (9.5)	0.971
FVC (% of predicted)‡	64.7 (15.9)	66.9 (21.3)	0.726
Smoking status
Smokers†	26	40	0.397
Ex-smokers†	63	60
Non-smokers†	11	0
Quality of life (SGRQ)
Symptom score‡	65.1 (18.1)	62.6 (20.8)	0.716
Activity score‡	76.5 (29.1)	73.0 (17.1)	0.690
Impact score‡	54.6 (22.9)	46.4 (19.1)	0.290
Total score‡	63.2 (21.1)	57.2 (16.5)	0.391
Nutritional risk
Score 4–5†	26	27	0.990
Score 6–7†	26	27
Score 8–9†	42	40
Score ≥10†	6	6
6MWD (m)‡	234 (108)	185 (90)	0.194
HGS (kg)‡	15 (8)	14 (7)	0.785
TUG (s)§	15.6 (9.7 to 19.8)	15.0 (11.4 to 17.8)	0.841
30 s chair stand (n)‡	3.7 (4.0)	5.6 (3.0)	0.160
In-hospital physiotherapy†	58	67	0.424

*P value for independent t-test for continuous data (age, height, weight, body mass index, fat-free mass, fat-free mass index, FEV₁, FVC, SGRQ scores, 6MWD, HGS and 30 s chair stand), Mann-Whitney test for non-parametric data (body fat mass and TUG) and Pearson’s χ² test for categorical data (gender, smoking status, nutritional risk score and in-hospital physiotherapy).
†Data shown as %.
‡Data shown as mean (SD).
§Data shown as median (95% CI).
FEV₁, forced expiratory volume in 1 s; FVC, forced vital capacity; HGS, hand grip strength; 6MWD, six min walking distance; ONS, oral nutritional supplements; SGRQ, St George’s Respiratory Questionnaire; TUG, timed up and go.