Table 3.

Predictors of moderate/high pain interference during initial phase of care (ref= minimal pain interference: “not at all/a little bit”) N=2961

		Demographics	Demographics and Clinical
Demographics		Moderate/high PI OR (95% CI)	Moderate/high PI OR (95% CI)
Race (ref*=White)
	African American	1.17 (0.93-1.47)	1.33 (1.03-1.72)
	Hispanic	1.06 (0.79-1.42)	1.19 (0.87-1.64)
	Asian	0.89 (0.62-1.28)	1.11 (0.75-1.65)
Age (ref=<55 years)
	55 to 64 years	0.90 (0.72-1.12)	0.85 (0.67-1.09)
	65 to 74 years	0.40 (0.31-0.51)	0.38 (0.29-0.51)
	≥75	0.44 (0.34-0.57)	0.51 (0.38-0.68)
Sex (ref=male)
	Female	1.29 (1.09-1.52)	1.36 (1.13-1.63)
Income (ref=≥$60,000)
	<$20,000	1.73 (1.31-2.29)	1.31 (0.96-1.79)
	$20,000 to <$40,000	1.60 (1.22-2.10)	1.33 (0.99-1.80)
	$40,000 to <$60,000	1.27 (0.96-1.69)	1.18 (0.86-1.63)
Education (ref=College degree or higher)
	Less than high school	1.30 (0.97-1.74)	1.28 (0.94-1.75)
	High school graduate/GED	1.21 (0.95-1.54)	1.18 (0.93-1.52)
	Some college/ vocational school	1.14 (0.95-1.44)	1.06 (0.82-1.36)
Clinical characteristics
Stage at diagnosis (ref=Stage I)
	Stage II		0.98 (0.76-1.28)
	Stage III		1.13 (0.84-1.52)
	Stage IV		0.95 (0.67-1.34)
Time since diagnosis (days)			0.99 (0.99-1.00)
Treatment† (ref=neither)
	Chemotherapy or radiation only		1.04 (0.81-1.35)
	Chemotherapy and radiation		2.97 (2.20-4.02)
Stoma (ref=no)
	Yes		0.89 (0.67-1.18)
Diabetes (ref=no)
	Yes		1.37 (1.09-1.73)
Kidney disease (ref=no)
	Yes		1.14 (0.85-1.53)
Crohn’s disease (ref=no)
	Yes		2.20 (1.34-3.60)
Pulmonary disease (ref=no)
	Yes		2.12 (1.63-2.76)
Heart failure (ref=no)
	Yes		1.19 (0.77-1.83)
Heart attack (ref=no)
	Yes		1.54 (1.11-2.13)
Stroke (ref=no)
	Yes		1.44 (1.03-2.02)
Depression (ref=no)
	Yes		1.77 (1.43-2.21)
Goodness-of-fit (Hosmer-Lemeshow)
X2 (df) p-value		8.68 (8) p=0.370	3.35 (8) p=0.910
C-statistic		0.64	0.70

^*Ref = Reference category;

^†Treatment status reflects the treatment received at the time of the first survey