Mediators of Discrimination in Primary Care Appointment Access

We examine how differences in questions asked and information provided by physicians' offices contribute to differences in new-patient appointment offers. Data is from a 2013-16 field experiment involving calls to a random sample of US primary care physicians on behalf of simulated new patients differentiated by race/ethnicity (Black, Hispanic, White), sex, and insurance. We find that the rates and stated reasons for denial of appointment offers differ substantially across patient groups.

Access to US primary care physicians for new patients concerned about smoking or weight

Tobacco smoking and obesity are leading causes of preventable morbidity and mortality in the US, and primary care physicians are the main source of preventive care. However, it is not known whether access for new patients is affected by an expression of interest in preventive care. In a 2015 audit, we called US primary care physicians' offices to request appointment information regarding new patient physicals for simulated patients. Simulated patients were differentiated by smoking concerns (N = 907), weight concerns (N = 867), or no health concerns ("healthy" patients; N = 3561). Additionally, patient profiles varied by race/ethnicity, sex, and insurance type. We also examined whether access differed in states that expanded Medicaid under the Affordable Care Act. We found that physicians' offices were no more likely to offer appointments to patients with smoking concerns than to healthy patients (54% vs. 55%; p-value = 0.56), and patients with smoking concerns were offered fewer appointments than patients with weight concerns (54% vs. 62%, p-value < 0.01). In analyses adjusted for covariates, smoking concerns did not improve appointment offers for any patient group, and reduced Medicare patients' offers in Medicaid expansion states by 9 percentage points relative to healthy patients (95% CI: -16, -2). Health concerns did not statistically significantly affect waits-to-appointment. Our results suggest that patients with smoking concerns are no more likely to be offered new patient appointments than those with no health concerns. The greater likelihood of appointment offers for some patients with weight concerns is encouraging for obesity prevention and management.

State Medicaid fees and access to primary care physicians

Medicaid and uninsured patients are disadvantaged in access to care and are disproportionately Black and Hispanic. Using a national audit of primary care physicians, we examine the relationship between state Medicaid fees for primary care services and access for Medicaid, Medicare, uninsured, and privately insured patients who differ by race/ethnicity and sex. We found that states with higher Medicaid fees had higher probabilities of appointment offers and shorter wait times for Medicaid patients, and lower probabilities of appointment offers and longer wait times for uninsured patients. Appointment offers and wait times for Medicare and privately insured patients were unaffected by Medicaid fees. At mean state Medicaid fees, our analysis predicts a 27-percentage-point disadvantage for Medicaid versus Medicare in appointment offers. This decreases to 6 percentage points when Medicaid and Medicare fees are equal, suggesting that permanent fee parity with Medicare could eliminate most of the disparity in appointment offers for Medicaid patients. The predicted decrease in the disparity is smaller for Black and Hispanic patients than for White patients. Our research highlights the importance of considering the effects of policy on nontarget patient groups, and the consequences of seemingly race-neutral policies on racial/ethnic and sex-based disparities.

Offers of appointments with nurse practitioners if a requested physician is unavailable

BACKGROUND AND PURPOSE

Access to primary care remains a problem for a substantial portion of the U.S. population, and is predicted to worsen due to an aging population and the increasing burden of chronic diseases. Better integration of nurse practitioners (NPs) into the primary care workforce is a possible solution. We examine offers of appointments with NPs if a requested primary care physician is unavailable.

METHODS

Data are from a 2013 audit (simulated patient) study requesting appointment information from a national random sample of primary care physicians. Outcome variables include appointment offers, wait-to-appointment times, and appointment offers with alternate providers, including NPs.

CONCLUSIONS

Of 922 calls to primary care physicians serving the general adult population, 378 (41%) offered appointments with the requested physician. Alternate providers were offered by 63 (7%), including nine offers with NPs (<1%). Mean wait-to-appointment for NPs (3.6 days) was statistically significantly shorter (p-values < .01) than for requested physicians (22.5 days) or non-NP alternate providers (23.9 days).

IMPLICATIONS FOR PRACTICE

NPs are an important part of the primary care workforce, and new patients seeking primary care physicians may substantially reduce their wait times if an NP is offered.

Surname Analysis as a Means of Estimating Minority Elderly

Estimates of the age, sex, and geographic distribution of four elderly Asian-origin populations residing in the United States are constructed using surname data obtained for 1990 from the Medicare enrollment files. The generally close correspondence of the results with baseline data for these four groups from the 1990 decennial census demonstrate the applicability of a surname approach. Surname analysis can be used as a means of drawing samples of ethnic minority groups, of estimating the current size of ethnic populations, and as an alternative method of deriving additional demographic information, for example, mortality statistics, for selected groups.