[Do online ratings reflect structural differences in healthcare? The example of German physician-rating websites]

The Credibility of Physician Rating Websites: A Systematic Literature Review

OBJECTIVES

Increasingly, the credibility of online reviews is drawing critical attention due to the lack of control mechanisms, the constant debate about fake reviews and, last but not least, current developments in the field of artificial intelligence. For this reason, the aim of this study was to examine the extent to which assessments recorded on physician rating websites (PRWs) are credible, based on a comparison to other evaluation criteria.

METHODS

Referring to the PRISMA guidelines, a comprehensive literature search was conducted across different scientific databases. Data were synthesized by comparing individual statistical outcomes, objectives and conclusions.

RESULTS

The chosen search strategy led to a database of 36,755 studies of which 28 were ultimately included in the systematic review. The literature review yielded mixed results regarding the credibility of PRWs. While seven publications supported the credibility of PRWs, six publications found no correlation between PRWs and alternative datasets. 15 studies reported mixed results.

CONCLUSIONS

This study has shown that ratings on PRWs seem to be credible when relying primarily on patients' perception. However, these portals seem inadequate to represent alternative comparative values such as the medical quality of physicians. For health policy makers our results show that decisions based on patients' perceptions may be well supported by data from PRWs. For all other decisions, however, PRWs do not seem to contain sufficiently useful data.

Ethnic and gender-based prejudice towards medical doctors? The relationship between physicians' ethnicity, gender, and ratings on a physician rating website

We investigated manifestations of ethnic and gender-based prejudice in a rather understudied high-status environment, that is we studied biased ratings of physicians with a migration background and female physicians. In a preregistered, archival study, we analyzed ratings of more than 140,000 physicians on a German rating website for medical professionals. Results indicate that general practitioners (but not dentists or specialists) with non-German names are rated less favorably than general practitioners with German names. This effect did not vary across regional contexts with varying prosperity and diversity. Our analyses also revealed that female physicians are evaluated less positively than male physicians. Contrary to our assumptions, bias against female physicians was especially strong in medical sub-disciplines that are characterized by a high share of female physicians.

One Decade of Online Patient Feedback: Longitudinal Analysis of Data From a German Physician Rating Website

Background

Feedback from patients is an essential element of a patient-oriented health care system. Physician rating websites (PRWs) are a key way patients can provide feedback online. This study analyzes an entire decade of online ratings for all medical specialties on a German PRW.

Objective

The aim of this study was to examine how ratings posted on a German PRW have developed over the past decade. In particular, it aimed to explore (1) the distribution of ratings according to time-related aspects (year, month, day of the week, and hour of the day) between 2010 and 2019, (2) the number of physicians with ratings, (3) the average number of ratings per physician, (4) the average rating, (5) whether differences exist between medical specialties, and (6) the characteristics of the patients rating physicians.

Methods

All scaled-survey online ratings that were posted on the German PRW jameda between 2010 and 2019 were obtained.

Results

In total, 1,906,146 ratings were posted on jameda between 2010 and 2019 for 127,921 physicians. The number of rated physicians increased constantly from 19,305 in 2010 to 82,511 in 2018. The average number of ratings per rated physicians increased from 1.65 (SD 1.56) in 2010 to 3.19 (SD 4.69) in 2019. Overall, 75.2% (1,432,624/1,906,146) of all ratings were in the best rating category of “very good,” and 5.7% (107,912/1,906,146) of the ratings were in the lowest category of “insufficient.” However, the mean of all ratings was 1.76 (SD 1.53) on the German school grade 6-point rating scale (1 being the best) with a relatively constant distribution over time. General practitioners, internists, and gynecologists received the highest number of ratings (343,242, 266,899, and 232,914, respectively). Male patients, those of higher age, and those covered by private health insurance gave significantly (P<.001) more favorable evaluations compared to their counterparts. Physicians with a lower number of ratings tended to receive ratings across the rating scale, while physicians with a higher number of ratings tended to have better ratings. Physicians with between 21 and 50 online ratings received the lowest ratings (mean 1.95, SD 0.84), while physicians with >100 ratings received the best ratings (mean 1.34, SD 0.47).

Conclusions

This study is one of the most comprehensive analyses of PRW ratings to date. More than half of all German physicians have been rated on jameda each year since 2016, and the overall average number of ratings per rated physicians nearly doubled over the decade. Nevertheless, we could also observe a decline in the number of ratings over the last 2 years. Future studies should investigate the most recent development in the number of ratings on both other German and international PRWs as well as reasons for the heterogeneity in online ratings by medical specialty.

Data Quality Issues With Physician-Rating Websites: Systematic Review

BACKGROUND

In recent years, online physician-rating websites have become prominent and exert considerable influence on patients' decisions. However, the quality of these decisions depends on the quality of data that these systems collect. Thus, there is a need to examine the various data quality issues with physician-rating websites.

OBJECTIVE

This study's objective was to identify and categorize the data quality issues afflicting physician-rating websites by reviewing the literature on online patient-reported physician ratings and reviews.

METHODS

We performed a systematic literature search in ACM Digital Library, EBSCO, Springer, PubMed, and Google Scholar. The search was limited to quantitative, qualitative, and mixed-method papers published in the English language from 2001 to 2020.

RESULTS

A total of 423 articles were screened. From these, 49 papers describing 18 unique data quality issues afflicting physician-rating websites were included. Using a data quality framework, we classified these issues into the following four categories: intrinsic, contextual, representational, and accessible. Among the papers, 53% (26/49) reported intrinsic data quality errors, 61% (30/49) highlighted contextual data quality issues, 8% (4/49) discussed representational data quality issues, and 27% (13/49) emphasized accessibility data quality. More than half the papers discussed multiple categories of data quality issues.

CONCLUSIONS

The results from this review demonstrate the presence of a range of data quality issues. While intrinsic and contextual factors have been well-researched, accessibility and representational issues warrant more attention from researchers, as well as practitioners. In particular, representational factors, such as the impact of inline advertisements and the positioning of positive reviews on the first few pages, are usually deliberate and result from the business model of physician-rating websites. The impact of these factors on data quality has not been addressed adequately and requires further investigation.

What Patients Value in Physicians: Analyzing Drivers of Patient Satisfaction Using Physician-Rating Website Data

BACKGROUND

Customer-oriented health care management and patient satisfaction have become important for physicians to attract patients in an increasingly competitive environment. Satisfaction influences patients' choice of physician and leads to higher patient retention and higher willingness to engage in positive word of mouth. In addition, higher satisfaction has positive effects on patients' willingness to follow the advice given by the physician. In recent years, physician-rating websites (PRWs) have emerged in the health care sector and are increasingly used by patients. Patients' usage includes either posting an evaluation to provide feedback to others about their own experience with a physician or reading evaluations of other patients before choosing a physician. The emergence of PRWs offers new avenues to analyze patient satisfaction and its key drivers. PRW data enable both satisfaction analyses and implications on the level of the individual physician as well as satisfaction analyses and implications on an overall level.

OBJECTIVE

This study aimed to identify linear and nonlinear effects of patients' perceived quality of physician appointment service attributes on the overall evaluation measures that are published on PRWs.

METHODS

We analyzed large-scale survey data from a German PRW containing 84,680 surveys of patients rating a total of 7038 physicians on 24 service attributes and 4 overall evaluation measures. Elasticities are estimated from regression models with perceived attribute quality as explanatory variables and overall evaluation measures as dependent variables. Depending on the magnitude of the elasticity, service attributes are classified into 3 categories: attributes with diminishing, constant, or increasing returns to overall evaluation.

RESULTS

The proposed approach revealed new insights into what patients value when visiting physicians and what they take for granted. Improvements in the physicians' pleasantness and friendliness have increasing returns to the publicly available overall evaluation (b=1.26). The practices' cleanliness (b=1.05) and the communication behavior of a physician during a visit (b level between .97 and 1.03) have constant returns. Indiscretion in the waiting rooms, extended waiting times, and a lack of modernity of the medical equipment (b level between .46 and .59) have the strongest diminishing returns to overall evaluation.

CONCLUSIONS

The categorization of the service attributes supports physicians in identifying potential for improvements and prioritizing resource allocation to improve the publicly available overall evaluation ratings on PRWs. Thus, the study contributes to patient-centered health care management and, furthermore, promotes the utility of PRWs through large-scale data analysis.