Table 2.

Logistic regression with continuous driving distances

	Elevated distress (CTXD)		Impaired physical function (PROMIS)
	OR	95% CI	OR	95% CI
Driving distance	1.00	1.00-1.00	1.00	1.00-1.00
Current age	0.98	0.97-0.99*	1.02	1.00-1.04*
Years after HCT	1.01	0.94-1.08	0.98	0.90-1.07
HCT type	(Reference: autologous)
RIC allogeneic	0.94	0.51-1.75	1.71	0.83-2.52
MAC allogeneic	0.86	0.55-1.36	1.09	0.61-1.96
Assessment method	(Reference: online)
Mail	2.78	1.74-4.43*	2.66	1.60-4.42*
Gender	(Reference: male)
Female	1.27	0.94-1.72	1.68	1.16-2.45*
Race	(Reference: white)
Non-white	1.22	0.64-2.32	0.86	0.38-1.91
Long-term partner	(Reference: long-term partner)
No long-term partner	0.54	0.36-0.82*	0.82	0.51-1.32
Household income	(Reference: ≥ $100K annually)
$60-99.9K	1.85	1.23-2.80*	1.37	0.78-2.40
$20K-$50.9K	2.72	1.76-4.20*	2.70	1.57-4.64*
≤ $19.9K	5.14	2.69-9.82*	5.94	2.83-12.4*
Highest education	(Reference: graduate degree)
Some/all college	1.06	0.72-1.56	1.11	0.58-2.15
High school or less	1.72	0.98-3.02	1.35	0.70-2.59
Current cGVHD	(Reference: none, including autologous HCT)†
Mild	1.36	0.81-2.29	1.11	0.58-2.15
Moderate/severe	7.66	4.01-14.6*	8.00	4.02-15.9*

Driving distances from HCT centers (in miles) were operationalized as a continuous variable. Model statistics suggested good fits (elevated distress: LR chi-square 149.3, p < 0.000; impaired physical function, LR chi-square 159.0, p < 0.000).

^⁎Statistically significant (p < 0.05).

^†Current cGVHD scores, which were only asked of allogeneic HCT recipients, were coded as ‘None’ for autologous HCT recipients for regression models to avoid being marked as missing. Abbreviations: CTXD, Cancer and Treatment Distress; PROMIS, Patient-Reported Outcome Measurement Information System Physical Function; OR, odds ratio; CI, confidence interval; HCT, hematopoietic cell transplantation; RIC, reduced-intensity conditioning; MAC, myeloablative conditioning; K, thousands of US dollars annually; cGVHD = chronic graft-versus-host disease; LR, likelihood ratio.