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. Author manuscript; available in PMC: 2010 Nov 10.
Published in final edited form as: Arch Intern Med. 2010 Oct 11;170(18):1664–1670. doi: 10.1001/archinternmed.2010.345

Table 2.

Hazard of ER Visit and Hospital Readmission 30 Days After Discharge in Patients With and Without a Follow-up Visit With Their PCP or a Pulmonologist

HR (95% CI)
Outcomes Rate, % Unadjusted Adjusteda
30-d ER visit; patients
  had follow-up with
  their PCP or
  pulmonologist
 Yes 21.7 0.83 (0.79–0.86) 0.86 (0.83–0.90)
 No 26.3 1 [Reference] 1 [Reference]
30-d readmission;
  patients had follow-up
  with their PCP or
  pulmonologist
 Yes 18.9 0.88 (0.84–0.92) 0.91 (0.87–0.96)
 No 21.4 1 [Reference] 1 [Reference]

Abbreviations: CI, confidence interval; ER, emergency department; HR, hazard ratio; PCP, primary care physician.

a

The HRs indicate the association of follow-up visit with patient's PCP or pulmonologist within 30 days of discharge with the risk of ER visit or readmission after adjusting for all the variables listed in Table 1. Deaths (n=1817) within 30 days of discharge were excluded from the analysis.