TABLE 2

Demographic Characteristics of Patients With Bronchiolitis Discharges (Age <2 Years)

Variable	No. of Observations	% Weighted	95% CI, %	Total Bronchiolitis Discharges (Thousands)	95% CI (Thousands)	Rate per 1000 US Population	95% CI
Bronchiolitis as primary diagnosis	5310	85	84 to 86	126	112 to 140	16	14 to 18
All bronchiolitis^a	6258			149	130 to 167	19	16 to 21
Age
<1 y	5334	85	84 to 87	127	111 to 143	32	28 to 36
1 y	924	15	13 to 16	22	19 to 25	6	5 to 6
Gender
Male	3648	58	57 to 60	87	76 to 97	21	19 to 24
Female	2610	42	40 to 43	62	54 to 70	16	14 to 18
Race/ethnicity
White non-Hispanic	2076	33	29 to 37	49	40 to 58	11	9 to 13
Other race/ethnicity	2428	39	34 to 44	58	46 to 70	17	13 to 20
Missing	1754	28	23 to 34	42	34 to 50		NA
Season
Winter	3461	61	59 to 63	83	72 to 93		NA
Spring	1317	23	21 to 24	31	27 to 35		NA
Summer	235	4	3 to 5	6	4 to 7		NA
Fall	681	12	11 to 13	16	13 to 20		NA
Region
Northeast	796	14	10 to 18	21	14 to 27	15	10 to 20
Midwest	1485	24	19 to 29	36	28 to 43	20	16 to 25
South	2714	43	37 to 49	64	50 to 77	21	17 to 26
West	1263	19	15 to 24	29	22 to 36	15	11 to 18