. Author manuscript; available in PMC: 2014 Sep 1.

Published in final edited form as: J Clin Nurs. 2014 Jan 27;23(0):2658–2671. doi: 10.1111/jocn.12526

Table 1.

Symptom scores for all sample and subgroups formed with three-cluster solutions

Symptom inventory (possible range)	All sample (n = 597) Mean ± SD	Subgroup 1 All low (n = 192, 32·2%) Mean ± SD	Subgroup 2 Moderate (n = 191, 32·0%) Mean ± SD	Subgroup 3 All high (n = 214, 35·8%) Mean ± SD	Test and statistical significance
Dyspnoea in UCSD (0–105)	58·36 ± 16·53	46·18 ± 15·13	61·54 ± 12·87	66·46 ± 14·24	F_2,594 = 111·58, p = 0.0001; all post hoc contrasts were significant
Anxiety in STAI (20–80)	34·48 ± 10·47	26·85 ± 10·47	31·14 ± 6·79	44·31 ± 9·07	F_2,594 = 322·27, p = 0.0001; all post hoc contrasts were significant
Depression in BDI (0–63)	9·33 ± 5·91	5·09 ± 2·88	7·01 ± 2·97	15·19 ± 5·20	F_2,594 = 389·69, p = 0.0001; all post hoc contrasts were significant
Fatigue in MOS-36 (0–100)	43·65 ± 19·38	62·24 ± 13·33	38·72 ± 13·01	31·38 ± 16·70	F_2,594 = 254·28, p = 0.0001; all post hoc contrasts were significant

UCSD, University of California, San Diego, Shortness of Breath Questionnaire; STAI, Spielberger State-Trait Anxiety Inventory; BDI, Beck Depression Inventory; MOS-36, Medical Outcomes Study 36-Item Short-Form Health Survey.

Higher score in UCSD, STAI and BDI indicates more dyspnoeic, anxious and depressive. Lower score in MOS-36 indicates having more fatigue.