Karmacharya P, Wright K, Achenbach SJ, et al. - According to this retrospective, population-based cohort study, more than half of psoriatic arthritis (PsA) patients experienced a diagnostic delay of > 2 years, and there was no significant improvement in time to diagnosis between 2000 and 2017.

• The sample consisted of incident adult (≥ 18 yrs) PsA patients from Olmsted County, Minnesota, from 2000 to 2017.

• From 2000 to 2017, 162 of the 164 incident PsA cases had a physician or rheumatologist diagnosis.

• The mean (standard deviation) age was 41.5 (12.6) years, with 46% of the population being female.

• The median time from onset of symptoms to physician diagnosis was 2.5 years.

• By 6 months, 38 (23%) had been diagnosed with PsA, 56 (35%) had been diagnosed by a year, and 73 (45%) had been diagnosed by 2 years after symptom onset.

• There was no discernible trend in diagnostic delay over calendar time.

• Earlier age at onset of PsA symptoms, higher BMI, and enthesitis were correlated with a diagnostic delay of > 2 years, while sebopsoriasis was related to a lower likelihood of delay.