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. Author manuscript; available in PMC: 2016 Oct 1.
Published in final edited form as: J Pediatr. 2015 Jul 29;167(4):869–874.e1. doi: 10.1016/j.jpeds.2015.06.049

Table 1.

Characteristics of Children Hospitalized with Community-Acquired Pneumonia, by Reported Second Hand Smoker Exposure in the Home

Home Smoke Exposure

Characteristic Non-
Exposed,
n=1434
1 Smoker,
n=460
≥2 Smokers,
n=325
p-
value
Median age in months (IQR) 27 (12–68) 27 (13–63) 20 (9–47) <.01
Sex, n (%) .73
  Male 793 (55.3) 256 (55.7) 171 (52.6)
Race/Ethnicity <.01
  Non-Hispanic White 560 (39.1) 157 (34.1) 153 (47.1)
  Non-Hispanic Black 426 (29.7) 204 (44.4) 105 (32.3)
  Hispanic 337 (23.5) 57 (12.4) 38 (11.7)
  Other 111 (7.7) 42 (9.1) 29 (8.9)
Enrollment site <.01
  Memphis, TN 447 (31.2) 213 (46.3) 135 (41.5)
  Nashville, TN 402 (28.0) 136 (29.6) 107 (32.9)
  Salt Lake City, UT 585 (40.8) 111 (24.1) 83 (25.5)
Enrollment year .02
  2010 426 (29.7) 172 (37.4) 108 (33.2)
  2011 640 (44.6) 188 (40.9) 153 (47.1)
  2012 368 (25.7) 100 (21.7) 64 (19.7)
Enrollment season .44
  Winter 509 (35.5) 155 (33.7) 120 36.9)
  Spring 461 (32.2) 138 (30.0) 95 (29.2)
  Fall 251 (17.5) 103 (22.4) 65 (20.0)
  Summer 213 (14.9) 64 (13.9) 45 (13.9)
Insurance type <.01
  Public 781 (54.5) 354 (77.0) 260 (80.0)
High-risk comorbidities, %
  Persistent Asthma1 164 (11.4) 402 (87.4) 40 (12.3) .78
  Prematurity (less than 36 weeks)2 137 (9.6) 43 (9.4) 35 (10.8) .82
  Neurologic 111 (7.7) 30 (6.5) 25 (7.7) .38
  Cardiopulmonary 146 (10.2) 38 (8.3) 30 (9.2) .27
  Other high-risk comorbidity3 169 (11.8) 44 (9.6) 27 (8.3) .08
Highest education in household <.01
  <High School 160 (11.2) 61 (13.3) 51 (15.7)
  High School Grad/Some College 655 (45.7) 300 (65.2) 216 (66.5)
  College Grad/Advanced Degree 519 (36.2) 80 (17.4) 43 (13.2)

Values displayed as median (IQR) or number (%);

1

defined as use of inhaled corticosteroids;

2

limited to children <24 months; 3 includes endocrine, renal, hepatic, hematologic, immunologic, chromosomal, and genetic/metabolic disorders