Table 6.

Performance status^a effect on symptom and interference severity

	n	Mean	Mean Difference	95% CI	Effect Size
7-day recall
All symptoms
Low (KPS ≤ 80%)	28	2.4	1.2*	0.6–1.8	0.53
High (KPS ≥90%)	64	1.2
Interference
Low (KPS ≤80%)	28	3.4	1.9*	0.8–3.0	0.40
High (KPS ≥90)	64	1.5
24-hour recall
All symptoms
Low (KPS ≤80%)	28	2.2	1.0*	0.5–1.6	0.52
High (KPS ≥90%)	64	1.1
Interference
Low (KPS ≤80%)	28	3.3	2.1*	1.0–3.2	0.48
High (KPS ≥90%)	64	1.2

*P value <.01.

^aas evaluated with Karnofsky performance scale.

Abbreviations: CI, confidence interval; KPS, Karnofsky performance scale.