Table 2

Characteristics of appointments by arrival status

	Arrival (n=36 234)		Non-arrival (n=15 346)
Age groups	n	%	n	%	P value
<1 year	9678	26.7	2805	18.3	<0.01
1–5 years	13 521	37.3	6336	41.3
6–12 years	8624	23.8	4155	27.1
13 years and over	4411	12.2	2050	13.4
Female	17 635	48.7	7343	47.9	0.09
Race
Black	29 353	81.0	13 711	89.4	<0.01
White	4926	13.6	1154	7.52
Other	1399	3.9	436	2.8
Asian	556	1.5	45	0.3
Ethnicity
Non-Hispanic or Latino	33 676	92.9	14 651	95.5	<0.01
Hispanic or Latino	1553	4.3	286	1.9
Not specified or declined	1005	2.8	409	2.7
Median ZIP code income*
Less than $26 625	8218	22.7	3598	23.5	<0.01
$32 118–$42 604	22 175	61.2	9689	63.1
$45 738–$51 994	5841	16.1	2059	13.4
Appointment season
Summer	8853	24.4	3988	26.0	<0.01
Fall	9894	27.3	3321	21.6
Winter	8519	23.5	4059	26.5
Spring	8968	24.8	3978	25.9
Appointment type
Well-child	29 152	80.5	13 195	86.0	<0.01
Not well-child	7082	19.6	2151	14.0
Car travel time in minutes*
Less than 16	9145	25.2	3803	24.8	0.26
16–22	21 086	58.2	8919	58.1
More than 22	6003	16.6	2624	17.1
Bus travel time in minutes*
Less than 33	15 416	42.6	6441	42.0	<0.01
33–56	13 584	38.2	6076	39.6
More than 56	6980	19.3	2829	18.4
Cumulative walking distance for bus travel in miles*
Less than 0.3	10 227	28.2	4398	28.7	<0.01
0.3–0.6	19 866	54.8	8608	56.1
More than 0.6	6141	17.0	2340	15.3
Bus travel includes a transfer	11 739	32.4	4754	31.0	<0.01