Table 1.

Visit-Level Characteristics for Concussion Primary Care Visits, Stratified by Pre- and Post-intervention Period (N = 14 527).

	All Concussion Visits		Pre-intervention July 1, 2010 to June 30, 2012		Post-intervention July 1, 2012 to July 1, 2014
	n	Proportion (%)	n	Proportion (%)	n	Proportion (%)
Overall	14 527		3744		10 783
Patient age (years) at date of visit
0–4	225	1.5	89	2.4	136	1.3
5–11	4031	27.7	950	25.4	3081	28.6
12–14	5433	37.4	1362	36.4	4071	37.8
15–19	4838	33.3	1343	35.9	3495	32.4
Patient sex
Female	6898	47.5	1560	41.7	5338	49.5
Male	7629	52.5	2184	58.3	5445	50.5
Patient race/ethnicity
Hispanic	505	3.5	131	3.5	374	3.5
Non-Hispanic white	11 041	76.0	2828	75.5	8213	76.2
Non-Hispanic black	1659	11.4	463	12.4	1196	11.1
Non-Hispanic other/Multiple	233	1.6	43	1.1	190	1.8
Unknown	1089	7.5	279	7.5	810	7.5
Payor
Medicaid	1773	12.2	398	10.6	1,375	12.8
Private	12 558	86.4	3288	87.8	9270	86.0
Self-pay	196	1.3	58	1.5	138	1.3
Presence of other injuries
No	14 297	98.4	3653	97.6	10 644	98.7
Yes	230	1.6	91	2.4	139	1.3
Visit is first concussion visit
No	7671	52.8	1327	35.4	6344	58.8
Yes	6856	47.2	2417	64.6	4439	41.2
Visit time of day
07:00–10:59	4210	29.0	1096	29.3	3114	28.9
11:00–14:59	5403	37.2	1313	35.1	4090	37.9
15:00–18:59	4571	31.5	1236	33.0	3335	30.9
19:00–22:59	342	2.4	99	2.6	243	2.3
Visit by weekend vs weekday
Weekend: Sat/Sun	303	2.1	84	2.2	219	2.0
Weekday: Mon-Fri	14 224	97.9	3660	97.8	10 564	98.0
Provider type
Physician	12 740	87.7	3443	92.0	9297	86.2
Nurse practitioner	1695	11.7	280	7.5	1415	13.1
Other	92	0.6	21	0.6	71	0.7