Appendix Table 3.

Univariate, Bivariate, and Multivariable Logistic Analyses Perceived Clinic Capacity to Address Patient's Social Needs among 1298 Family Physicians Applying for Continuous Certification with the American Board of Family Medicine in 2016

Variable	Total Family Physicians		Bivariate: High Perceived Clinic Capacity, n/N = 589/1298 (45.4%)		Multivariable: High Perceived Clinic Capacity, n/N = 589/1298 (45.4%)
Variable	N = 1298	%	OR	95% CI	OR	95% CI
Practice-level characteristics
Stage of PCMH
Not applying	435	33.5	Ref	Ref	Ref	Ref
Applying	299	23.0	0.90	0.66–1.22	1.00	0.72–1.37
Recognized	564	43.5	1.86^*	1.44–2.39	1.65^*	1.34–2.21
Practice size
Solo	184	14.2	Ref	Ref	Ref	Ref
Small (2–5 clinicians)	439	33.8	0.97	0.68–1.34	0.89	0.62–1.36
Medium (6–20 clinicians)	452	34.8	1.40	0.99–1.99	1.00	0.60–1.37
Large (20 + clinicians)	222	17.1	2.03^*	1.37–3.02	1.08	0.51–1.41
Other	1	0.1	0.00	0.00	0.00	0.00
Practice ownership
Private practice	767	59.1	Ref	Ref	Ref	Ref
Hospital or HMO based	309	23.8	1.30	0.99–1.69	0.95	0.68–1.32
FQHC and similar	136	10.5	2.24^*	1.55–3.25	1.35	0.86–2.14
Other	86	6.6	3.93^*	2.40–6.44	2.39^*	1.35–4.24
Medical school faculty
No	996	76.7	Ref	Ref	Ref	Ref
Yes, full time	55	4.2	0.73	0.42–1.28	0.55	0.27–1.13
Yes, part time	247	19.0	0.98	0.74–1.30	1.02	0.74–1.42
Residency faculty
No	1,122	86.4	Ref	Ref	Ref	Ref
Yes, full time	70	5.4	0.91	0.56–1.48	0.67	0.35–1.30
Yes, part time	106	8.2	1.12	0.75–1.67	0.92	0.57–1.47
Vulnerable patients
<10%	395	30.4	Ref	Ref	Ref	Ref
10%–19%	343	26.4	0.90	0.67–1.21	0.96	0.70–1.31
≥20%	560	43.1	1.39^*	1.07–1.80	1.10	0.82–1.48
Pharmacist
No	1,043	80.4	Ref	Ref	Ref	Ref
Yes	255	19.7	3.32^*	2.48–4.45	1.73^*	1.18–2.53
Social work
No	1,057	81.4	Ref	Ref	Ref	Ref
Yes	241	18.6	3.92^*	2.89–5.33	2.16^*	1.44–3.26
Behavior specialist
No	998	76.9	Ref	Ref	Ref	Ref
Yes	300	23.1	2.64^*	2.02–3.45	1.28	0.88–1.87
Psychiatrist
No	1,156	89.1	Ref	Ref	Ref	Ref
Yes	142	10.9	3.25^*	2.22–4.74	1.06	0.64–1.75
Individual-level characteristics
Years in practice (1+)
Continuous (1–53)	—	—	0.97^*	0.96–0.986	0.98^*	0.97–1.00
Sex
Male	573	44.1	Ref	Ref	Ref	Ref
Female	725	55.9	0.95	0.76–1.19	1.23	0.96–1.58
Race
White	931	71.7	Ref	Ref	Ref	Ref
Non-white	367	28.3	1.75^*	1.37–2.23	1.77^*	1.34–2.35
Ethnicity
Hispanic	78	6.0	Ref	Ref	Ref	Ref
Non-Hispanic	1220	94.0	0.78	0.49–1.23	0.66	0.41–1.08
Employment type
Employee	847	67.6	Ref	Ref	Ref	Ref
Owner	406	31.3	0.74^*	0.58–0.94	1.19	0.86–1.63
Contractor	45	3.5	1.15	0.63–2.10	0.94	0.48–1.86

↵* P < .05.
OR, odds ratio, CI, confidence interval; PCMH, patient-centered medical home; HMO, health maintenance organization; FQHC, federally qualified health center; Ref, reference.