Characteristics of primary care providers who adopted the hospitalist model from 2001 to 2009

Romsai T. Boonyasai, Yu Li Lin, Daniel J. Brotman, Yong Fang Kuo, James S. Goodwin

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


BACKGROUND: The characteristics of primary care providers (PCPs) who use hospitalists are unknown.

METHODS: Retrospective study using 100% Texas Medicare claims from 2001 through 2009. Descriptive statistics characterized proportion of PCPs using hospitalists over time. Trajectory analysis and multilevel models of 1172 PCPs with ≥20 inpatients in every study year characterized how PCPs adopted the hospitalist model and PCP factors associated with this transition.

RESULTS: Hospitalist use increased between 2001 and 2009. PCPs who adopted the hospitalist model transitioned rapidly. In multilevel models, hospitalist use was associated with US training (odds ratio [OR] 1.46, 95% confidence interval [CI]: 1.23-1.73 in 2007-2009), family medicine specialty (OR: 1.46, 95% CI: 1.25-1.70 in 2007-2009), and having high outpatient volumes (OR: 1.32, 95% CI: 1.20-1.44 in 2007-2009). Over time, relative hospitalist use decreased among female PCPs (OR: 1.91, 95% CI: 1.46-2.50 in 2001-2003; OR: 1.50, 95% CI: 1.15-1.95 in 2007-2009), those in urban locations (OR: 3.34, 95% CI: 2.72-4.09 in 2001-2003; OR: 2.22, 95% CI: 1.82-2.71 in 2007-2009), and those with higher inpatient volumes (OR: 1.05, 95% CI: 0.95-1.18 in 2001-2003; OR: 0.55, 95% CI: 0.51-0.60 in 2007-2009). Longest-practicing PCPs were more likely to transition in the early 2000s, but this effect disappeared by the end of the study period (OR: 1.35, 95% CI: 1.06-1.72 in 2001-2003; OR: 0.92, 95% CI: 0.73-1.17 in 2007-2009). PCPs with practice panels dominated by patients who were white, male, or had comorbidities are more likely to use hospitalists.

CONCLUSIONS: PCP characteristics are associated with hospitalist use. The association between PCP characteristics and hospitalist use has evolved over time.

Original languageEnglish (US)
Pages (from-to)75-82
Number of pages8
JournalJournal of hospital medicine
Issue number2
StatePublished - Feb 1 2015
Externally publishedYes

ASJC Scopus subject areas

  • Internal Medicine
  • Leadership and Management
  • Fundamentals and skills
  • Health Policy
  • Care Planning
  • Assessment and Diagnosis


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