. Author manuscript; available in PMC: 2015 Jun 13.

Published in final edited form as: Psychooncology. 2014 Jul 24;24(6):643–652. doi: 10.1002/pon.3623

Table 4.

Multivariate linear and logistic regression of post-traumatic stress disorder Checklist-Civilian version scores, full and parsimonious models

Model 1: full model with continuous PCL-C Score as outcome (R² = 0.61)
	Coefficient	Standard error	p-value	95% confidence interval
Age at enrollment	−12.34	10.58	0.25	[−33.24, 8.57]
Gender	0.03	1.49	0.99	[−2.93, 2.99]
Non-white race	1.44	1.19	0.23	[−0.92, 3.81]
Years since diagnosis	12.39	10.58	0.24	[−8.53, 33.30]
Education
< college degree	−0.05	1.43	0.97	[−2.88, 2.77]
College degree	−0.23	1.14	0.84	[−2.49, 2.03]
Annual Income
<$60k	2.96	1.43	0.04	[0.12, 5.80]
<$99k	0.97	1.30	0.46	[−1.61, 3.55]
Married	2.24	1.16	0.05	[−0.05, 4.54]
Age at diagnosis	12.33	10.57	0.25	[−8.57, 33.22]
Childhood survivor	−0.28	2.58	0.92	[−5.38, 4.83]
Multiple diagnoses	−1.38	1.45	0.34	[−4.25, 1.48]
Chemotherapy	−0.00	1.15	0.99	[−2.27, 2.27]
Radiation	−0.70	1.18	0.55	[−3.04, 1.63]
Surgery	1.09	1.49	0.46	[−1.85, 4.04]
ESSI	−2.42	1.28	0.06	[−4.96, 0.11]
CES-D	4.48	1.59	0.005	[1.34, 7.62]
SF-36 MCS	−0.20	0.07	0.003	[−0.33, −0.07]
IOC PIS	1.06	0.81	0.19	[−0.53, 2.66]
IOC NIS	4.21	0.77	0.000	[2.69, 5.73]

Model 2: parsimonious model with continuous PCL-C Score as outcome (R² = 0.61)
	Coefficient	Standard error	p-value	95% confidence interval
Non-white race	1.31	1.11	0.24	[−0.90, 3.51]
Annual income
<$60k	2.75	1.27	0.03	[0.24, 5.25]
<$99k	0.83	1.24	0.51	[−1.62, 3.28]
Married	2.22	1.07	0.04	[0.11, 4.33]
ESSI	−2.44	1.16	0.04	[−4.73, −0.15]
CES-D	4.59	1.51	0.003	[1.6, 7.58]
SF-36 MCS	−0.21	0.06	0.001	[−0.33, −0.09]
IOC PIS	0.80	0.74	0.28	[−0.67, 2.26]
IOC NIS	4.17	0.72	0.00	[2.75, 5.59]
Likelihood ratio test of full model compared to parsimonious model: Prob > chi2 = 0.9790

Model 3: parsimonious model with bivariate PCL-C Score of 30 or greater as outcome (pseudo R² = 0.57)
	Odds ratio	Standard error	p-value	95% confidence interval
Non-white race	1.95	1.25	0.29	[0.56, 6.84]
Annual income
<$60k	1.61	1.22	0.53	[0.36, 7.09]
<$99k	1.07	0.88	0.93	[0.21, 5.40]
Married	1.03	0.67	0.96	[0.29, 3.70]
ESSI	0.16	0.10	0.005	[0.04, 0.58]
CES-D	3.35	2.73	0.14	[0.68, 16.57]
SF-36 MCS	0.91	0.04	0.03	[0.84, 0.99]
IOC PIS	3.07	1.59	0.03	[1.12, 8.47]
IOC NIS	14.21	8.94	0.000	[4.14, 48.75]

Model 4: parsimonious model with bivariate PCL-C Score of 38 or greater as outcome (pseudo R² = 0.61)
	Odds ratio	Standard error	p-value	95% confidence interval
Non-white race	0.62	0.58	0.61	[0.10, 3.91]
Annual income
<$60k	21.97	25.40	0.008	[2.28, 211.82]
<$99k	0.57	0.80	0.69	[0.04, 8.94]
Married	3.39	3.07	0.18	[0.58, 19.97]
ESSI	0.81	0.75	0.83	[0.13, 5.00]
CES-D	5.52	5.88	0.11	[0.68, 44.52]
SF-36 MCS	0.89	0.05	0.03	[0.81, 0.99]
IOC PIS	2.98	2.13	0.13	[0.73, 12.10]
IOC NIS	7.81	6.24	0.01	[1.63, 37.38]

Model 5: parsimonious model with bivariate PCL-C Score of 44 or greater as outcome (pseudo R² = 0.61)
	Odds ratio	Standard error	p-value	95% confidence interval
Non-white race	2.94	3.19	0.32	[0.35, 24.68]
Annual income
<$60k	27.29	37.61	0.02	[1.83, 403.37]
<$99k	0.86	1.67	0.94	[0.02, 39.37]
Married	24.02	31.93	0.02	[1.78, 325.02]
ESSI	2.89	3.92	0.43	[0.20, 41.12]
CES-D	1.18	1.52	0.90	[0.95, 14.68]
SF-36 MCS	0.90	0.05	0.07	[0.81, 1.01]
IOC PIS	6.27	6.29	0.08	[0.88, 44.86]
IOC NIS	37.09	50.88	0.008	[2.52, 545.46]

Reference groups: annual income: $100k or greater; Education: graduate degree. ESSI, ENRICHD Social Support Instrument; CES-D, Center for Epidemiologic Studies Depressive Symptoms instrument; SF-36 MCS, Mental Component Summary Score; IOC PIS, Impact of Cancer Positive Impact Summary Score; IOC NIS, Impact of Cancer Negative Impact Summary Score.