title: The nature of surgeon human capital depreciation.
abstract: To test how practice interruptions affect worker productivity, we estimate how temporal breaks affect surgeons' performance of coronary artery bypass grafting (CABG). Examining 188 surgeons who performed 56,315 CABG surgeries in Pennsylvania between 2006 and 2010, we find that a surgeon's additional day away from the operating room raised patients' inpatient mortality by up to 0.067 percentage points (2.4% relative effect) but reduced total hospitalization costs by up to 0.59 percentage points. Among emergent patients treated by high-volume providers, where temporal distance is most plausibly exogenous, an additional day away raised mortality risk by 0.398 percentage points (11.4% relative effect) but reduced cost by up to 1.4 percentage points. This is consistent with the hypothesis that as temporal distance increases, surgeons are less likely to recognize and address life-threatening complications. Our estimates imply additional intraprocedural treatment intensity has a cost per life-year preserved of $7871-18,500, well within conventional cost-effectiveness cutoffs.
authors: Emory University, United States; NBER, United States. Electronic address: jason.hockenberry@emory.edu.
authors: Jason M
authors: JM
authors: Hockenberry
authors: George Mason University, United States. Electronic address: lhelmche@gmu.edu.
authors: Lorens A
authors: LA
authors: Helmchen
mesh_terms: D002983:Clinical Competence; D001026:Coronary Artery Bypass / Q000191:economics* / Q000401:mortality*; D004526:Efficiency; D005260:Female; D017052:Hospital Mortality; D006760:Hospitalization / Q000191:economics; D006801:Humans; D008297:Male; D010414:Pennsylvania; D019984:Quality Indicators, Health Care; D012307:Risk Factors; D066231:Surgeons; D013997:Time Factors; D016896:Treatment Outcome; D014481:United States
keywords: Human capital; Productivity; Returns to medical spending; Skill depreciation