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. Author manuscript; available in PMC: 2022 May 1.
Published in final edited form as: Infect Control Hosp Epidemiol. 2020 Oct 16;42(5):612–615. doi: 10.1017/ice.2020.1231

Table 1.

Visits and Antibiotic Prescriptions for Bronchitis and Bronchiolitis in EDs and Physician Offices, Children 0–18 Years, US NAMCS/NHAMCS, 2006–2015

<2 Years 2–18 Years All Children
National Weighted Estimated Annual Average Number of Visits for Diagnosis (95% CI) for 2006–2015 % Visits with Antibiotics Prescribed (95% CI)a National Weighted Estimated Annual Average Number of Visits for Diagnosis (95% CI) for 2006–2015 % Visits with Antibiotics Prescribed (95% CI)a National Weighted Estimated Annual Average Number of Visits for Diagnosis (95% CI) for 2006–2015 % Visits with Antibiotics Prescribed (95% CI)a
Total 1,069,200 (878,672, 1,259,728) 40.31 (33.78, 46.84) 1,910,261 (1,574,424, 2,246,097) 67.72 (62.14, 73.30) 2,979,460 (2,521,463, 3,437,458) 57.89 (53.24, 62.53)
Diagnosis
Bronchitisb 527,473 (399,976, 654,971) 61.30 (53.39, 69.20) 1,814,064 (1,478,957, 2,149,170) 69.61 (63.88, 75.34) 2,341,537 (1,921,836, 2,761,237) 67.74 (62.58,72.90)
Bronchiolitisc 541,727 (414,252, 669,202) 19.87 (12.70, 27.04) 96,197 (55,498, 136,896) * 637,924, (494,600, 781,247) 21.72 (14.28, 29.16)
Sex
Male 630,608 (508,735, 752,481) 37.79 (29.55, 46.03) 928,236 (748,795, 1,107,676) 70.07 (63.39, 76.75) 1,558,844 (1,314,879, 1,802,809) 57.01 (51.57, 62.46)
Female 438,592 (331,271, 545,913) 43.93 (33.40, 54.45) 982,025 (779,217, 1,184,832) 65.50 (57.03, 73.98) 1,420,617 (1,153,978, 1,687,255) 58.84 (52.32.65.36)
Region
Northeast 154,291 (60,715, 247,868) 34.29 (21.54, 47.03) 300,038 (175,631, 424,444) 77.27 (68.25, 86.30) 454,329 (254,681, 653,977) 62.67 (55.02, 70.33)
Midwest 178,682 (120,657, 236,707) 40.37 (22.99, 57.75) 331,695 (235,699, 427,690) 72.29 (63.46, 81.12) 510,377 (384,796, 635,957) 61.11 (52.28, 69.95)
South 431,123 (311,617, 550,630) 41.37 (30.63, 52.10) 850,602 (625,996, 1,075,208) 69.08 (61.75, 76.41) 1,281,725 (998,495, 1,564,955) 59.76 (52.71, 66.81)
West 305,103 (205,623, 404,583) 41.83 (29.71, 53.94) 427,926 (233,900, 621,953) 54.80 (39.56, 70.03) 733,030 (461,158, 1,004,901) 49.40 (37.98, 60.82)
Setting
Emergency Department 240,828 (202,060, 279,597) 26.59 (19.90, 33.28) 297,910 (256,694, 339,126) 58.55 (52.69, 64.40) 538,739 (474,140, 603,337) 44.26 (39.46, 49.06)
Physician Office 828,372 (639,661, 1,017,082) 44.30 (36.32, 52.28) 1,612,350 (1,287,754, 1,936,947) 69.42 (62.86, 75.98) 2,440,722 (1,995,356, 2,886,087) 60.89 (55.36, 66.42)
Clinician Specialty
Pediatrics 729,482 (553,575, 905,389) 41.78 (33.39, 50.17) 992,911 (751,858, 1,233,963) 66.43 (57.47, 75.38) 1,722,393 (1,367,114, 2,077,671) 55.99 (49.16, 62.82)
Family Medicine * * 503,943 (356,397, 651,489) 73.00 (63.33, 82.69) 601,950 (437,031, 766,868) 71.45 (62.49, 80.42)
Emergency Department 240,828 (202,060, 279,597) 26.59 (19.90, 33.28) 297,910 (256,694, 339,126) 58.55 (52.69, 64.40) 538,739 (474,140, 603,337) 44.26 (39.46, 49.06)
a.

Calculated as number of visits for diagnoses with an antibiotic prescription as the numerator and the total number of visits for diagnoses as the denominator

b.

ICD-9-CM codes 466.0 or 490.0 in the primary position with no other codes in any coding position for a diagnosis where antibiotics are or may be indicated

c.

ICD-9-CM codes 466.11 or 466.19 in the primary position with no other codes in any coding position for a diagnosis where antibiotics are or may be indicated

*

Sample size does not meet standards for reliability (<30 sampled visits)