TABLE 1

Bivariate Analysis of Variables Associated With 365-Day Readmission

VariablesTotal (N = 613), n1+ Readmission (N = 152; 24.8%), n (%)OR (95% CI)P
Attendance at ambulatory visits
Postdischarge visit0.65 (0.44–0.95).03
  No19760 (30.0)
  Yes41692 (22.1)
Routine visita1.44 (0.98–2.14).07
  No26551 (19.3)
  Yes33285 (25.6)
Both visitsa0.95 (0.64–1.41).82
  No36885 (23.1)
  Yes22951 (22.3)
Demographics
Age, y1.05 (0.63–1.73).86
  2–12519128 (24.7)
  12–189424 (25.5)
Sex0.89 (0.61–1.29).54
  Female26168 (26.1)
  Male35284 (23.9)
Race and/or ethnicityb.60
  Hispanic31476 (24.2)Reference
  Non-Hispanic African American22662 (27.4)1.18 (0.80–1.75)
  Non-Hispanic other6613 (19.7)0.77 (0.40–1.49)
  Unavailable71 (14.3)0.52 (0.06–4.40)
Language0.70 (0.37–1.34).28
  Non-English4815 (31.2)
  English565137 (24.2)
Measures of baseline asthma disease severity
Asthma hospitalization in previous year3.59 (2.36–5.46)<.001
  None49095 (19.4)
  1+12357 (46.3)
ED visit in previous year1.88 (1.30–2.72).001
  None35069 (19.7)
  1+26383 (31.6)
Asthma sick visit in previous year1.20 (0.83–1.73).34
  None35182 (23.4)
  1+26270 (26.7)
Asthma scheduled visit in previous year1.94 (1.26–2.98).002
  None19433 (17.0)
  1+419119 (28.4)
Previous PICU admission3.15 (1.91–5.18)<.001
  None538117 (21.7)
  Any7535 (46.7)
Asthma severity<.001
  Mild intermittent26547 (17.7)Reference
  Mild persistent17345 (26.0)1.63 (1.03–2.59)
  Moderate persistent13041 (31.5)2.14 (1.31–3.47)
  Severe4519 (42.2)3.39 (1.73–6.63)
Exposure to smoke, dogs and/or cats, mice, cockroaches, or mold1.54 (1.05–2.27).03
  None42795 (22.2)
  Any18657 (30.6)
Visit with asthma specialist in previous year1.82 (1.14–2.90).01
  No516118 (22.9)
  Yes9734 (35.1)
History of asthma comorbidityc1.22 (0.82–1.80).32
  None21448 (22.4)
  Any399104 (26.1)
Measures of severity of index hospitalization
PICU stay during index hospitalization2.77 (1.74–4.42)<.001
  No523113 (21.6)
  Yes9039 (43.3)
Controller medication prescribed at discharge2.17 (1.41–3.33)<.001
  No20633 (16.0)
  Yes407119 (29.2)
Postdischarge visit scheduled1.29 (0.89–1.86).18
  No29566 (22.4)
  Yes31886 (27.0)
APR-DRG severity of illness.049
  Minor35985 (23.7)Reference
  Moderate20949 (23.4)0.99 (0.66–1.48)
  Major or extreme4518 (40.0)2.15 (1.13–4.09)
Other measure: need for routine follow-up documented at postdischarge visitd0.88 (0.55–1.40).58
No16639 (23.5)
Yes25053 (21.2)
  • Unadjusted ORs are presented.

  • a Total n = 597 because 16 children were readmitted before they had a chance for routine follow-up.

  • b Fisher’s exact test.

  • c Asthma comorbidity was defined as a condition that leads to more complicated asthma, including the presence of obesity, allergic rhinitis, eczema, gastroesophageal reflux disease, and/or obstructive sleep apnea.18

  • d Includes only children who attended a postdischarge visit (n = 416; n = 92 for 1+ readmission).