Table 4.

Multivariate analyses of variables assessed for odds of declining enrollment

Variable	Odds ratio (95 % confidence interval)	P-value
Age (1-year increase)*	1.03 (1.00, 1.06)	0.05
Gender (female vs male)**	2.24 (1.19, 4.35)	0.01
Cancer (lung vs pancreas)	1.21 (0.58, 2.73)	0.62
Fatigue (one-unit increase)	1.01 (0.87, 1.17)	0.93
Pain (one-unit increase)	0.95 (0.82, 1.10)	0.49

*Older patients are 3 % more likely than younger patients to decline study participation with each year of advancing age after adjusting for gender, cancer type, fatigue score, and pain score.

**Women have a 2.24 times greater likelihood of declining study enrollment than men after adjusting for age, cancer type, fatigue score, and pain score.