Table 1.

Characteristics of ambulatory care visits for acute bronchitis/URI, by year

Variable	2006 (%)	2007 (%)	2008 (%)	2009 (%)	2010 (%)	All years (%)
Patient received antibiotic prescription	34.1	40.3	40.6	38.8	45.4	39.8
Provider uses decision support*	16.1	17.6	34.6	39.9	54.5	31.8
Provider uses e-prescribing*	13.2	16.2	30.4	35.9	55.6	29.4
Provider uses EMR*	14.5	18.7	25.1	36.2	47.3	27.9
Patient insurance type
Private	56.0	54.2	61.2	52.9	55.8	55.8
Medicare	7.6	13.6	13.6	14.1	12.8	12.4
Medicaid	25.5	21.0	17.9	27.2	23.6	23.2
Self-pay	2.6	4.7	3.4	3.1	2.4	3.3
Other	2.0	1.9	0.9	1.1	3.0	1.7
Provider office type
Private practice	85.4	87.9	89.4	90.1	86.3	87.9
HMO	2.0	1.8	1.3	1.2	2.8	1.8
Other	12.6	10.3	9.3	8.3	10.9	10.3
Provider specialty
Pediatrics	35.3	38.2	36.1	32.8	36.3	35.7
General/family medicine	42.4	36.6	41.5	47.4	37.1	41.1
Other	22.3	25.2	22.5	19.8	26.7	23.2
Patient age (years)
0–4	29.3	29.2	30.5	22.9	30.5	28.3
5–17	19.0	20.6	16.5	22.3	18.7	19.5
18–64	42.1	35.4	37.8	39.9	37.6	38.6
>65	9.6	14.8	15.3	14.9	13.2	13.6
Patient race
Non-Hispanic white	62.6	63.4	67.4	69.0	66.1	65.6
Non-Hispanic black	12.2	10.7	9.8	10.6	12.2	11.1
Hispanic	17.1	14.6	13.7	15.6	15.5	15.3
Other	8.0	11.4	9.1	4.9	6.3	8.0
Patient chronic condition(s)
None	3.8	3.2	4.2	6.5	4.1	4.4
Asthma	7.8	8.9	9.4	8.4	10.9	9.0
COPD	28.7	24.7	23.3	26.9	19.9	24.9
Unweighted cases (n)	580	690	631	722	694	3317

*p<0.001.

COPD, chronic obstructive pulmonary disease; EMR, electronic medical record; HMO, health maintenance organization; URI, upper respiratory infection.