Comanagement of Rashes by Primary Care Providers and Dermatologists: A Retrospective Study.

Background: There is a high demand for managing skin disease, and dermatologists are in short supply.

Objectives: To better understand how rashes and other specific skin conditions are co-managed by primary care providers (PCPs) and dermatologists, we estimated the frequency with which PCPs sought consultation with or referral to dermatology and the proportion of patients who had a follow-up dermatology office visit in the following 90 days.

Design And Setting: The retrospective longitudinal study included 106,459 patients with a skin condition diagnosed by 3,830 PCPs, from January 2017 to March 2017.

Cohort and nested case-control study of cutaneous squamous cell carcinoma in solid organ transplant recipients, by medication.

Background: Knowledge is needed about the risk of cutaneous squamous cell carcinoma (cSCC) in solid organ transplant recipients (SOTRs) using contemporary immunosuppressive regimens.

Objective: Evaluate the risk of cSCC in relation to medications used by SOTRs.

Methods: The cohort and nest case-control study included 3308 SOTRs and 65,883 persons without transplantation during 2009-2019.

Ten-Year Follow-up of Persons With Sun-Damaged Skin Associated With Subsequent Development of Cutaneous Squamous Cell Carcinoma.

Importance: Risk of cutaneous squamous cell carcinoma (cSCC) after the diagnosis of actinic keratosis (AK) has not been studied during long follow-up periods.

Objective: To estimate the risk up to 10 years and identify risk factors for cSCC development.

Design, Setting, And Participants: This longitudinal cohort study, performed from January 1, 2009, to February 29, 2020, examined Kaiser Permanente Northern California patients with AK and control patients matched 1:1 on age, sex, race/ethnicity, medical center, and date of the initial diagnosis plus 30 days in the patients with AK.

Presentation of Rash in a Community-Based Health System.

Introduction: Coordination of care between primary care providers and dermatologists is important to ensure high quality and cost efficiency. In our integrated care setting, we used a retrospective cohort study to assess which patients self-refer to dermatology and which returned for a follow-up visit in dermatology.

Methods: We identified 107,832 patients with a new rash diagnosis who presented to primary care or dermatology between January and March 2017.

Association of teledermatology workflows with standardising co-management of rashes by primary care physicians and dermatologists.

Introduction: For patients with a rash, the effect of teledermatology workflow on utilization has not been defined. We compared utilization across four teledermatology workflows in patients with a rash.

Methods: The observational longitudinal cohort study included 28,857 Kaiser Permanente Northern California members with a new rash diagnosis seen in primary care and with dermatology advice obtained using teledermatology.

Comparative effectiveness study of face-to-face and teledermatology workflows for diagnosing skin cancer.

Background: The effectiveness and value of teledermatology and face-to-face workflows for diagnosing lesions are not adequately understood.

Objective: We compared the risks of biopsy and cancer diagnosis among 2 face-to-face workflows (direct referral and roving dermatologist) and 4 teledermatology workflows.

Methods: Retrospective study of 59,279 primary care patients presenting with a lesion from January through June 2017.