Table 2.

Relative risk of performing cataract surgery as well as subspecialty surgery, stratified by provider primary subspecialty

	Retina (N=1224)			Oculoplastics (N=609)			Cornea (N=338)			Glaucoma (N=378)
	Risk ratio	95% CI	P value	Risk ratio	95% CI	P value	Risk ratio	95% CI	P value	Risk ratio	95% CI	P value
Years in practice
<10 years	Reference			Reference			Reference			Reference
10–20 years	1.51	0.78 to 2.92	0.22	1.93	1.15 to 3.26	0.01*	0.99	0.75 to 1.31	0.94	1.02	0.78 to 1.33	0.91
20–30 years	2.20	1.17 to 4.12	0.01*	1.91	1.11 to 3.27	0.02*	0.95	0.71 to 1.28	0.75	0.88	0.66 to 1.16	0.36
>30 years	3.74	1.80 to 7.76	0.00***	1.70	0.90 to 3.23	0.10	0.89	0.62 to 1.29	0.54	0.73	0.47 to 1.12	0.15
Gender
Female	Reference			Reference			Reference			Reference
Male	1.63	0.58 to 4.55	0.35	2.71	1.36 to 5.42	0.00**	1.08	0.78 to 1.49	0.64	1.02	0.79 to 1.33	0.87
Region
Northwest	Reference			Reference			Reference			Reference
South	0.51	0.25 to 1.04	0.06	1.35	0.79 to 2.31	0.27	1.06	0.76 to 1.48	0.72	0.89	0.65 to 1.22	0.48
Midwest	0.90	0.44 to 1.83	0.77	1.14	0.61 to 2.11	0.68	1.04	0.71 to 1.51	0.86	0.96	0.68 to 1.36	0.82
West	1.08	0.54 to 2.16	0.82	1.17	0.65 to 2.10	0.60	1.06	0.71 to 1.57	0.78	0.94	0.66 to 1.33	0.72
Rurality
Metro*	Reference			Reference			Reference			Reference		Reference
Non-metro	3.78	1.71 to 8.38	0.00**	3.07	1.88 to 5.02	0.00***	1.07	0.55 to 2.09	0.84	1.08	0.64 to 1.83	0.76
Hospital affiliation
No	Reference			Reference			Reference			Reference
Yes	0.65	0.40 to 1.04	0.07	0.73	0.50 to 1.08	0.11	1.00	0.77 to 1.28	0.97	0.96	0.77 to 1.20	0.71

^*p<0.05,

^**p<0.01,

^***p<0.001.

^*Metropolitan.