TLDR The analysis found that alopecia areata, a hair loss condition, is not very common in Australia, affecting about 0.13% of people, with new cases most often seen in males aged 19 to 34 years.
The retrospective analysis of electronic health record data from 2011 to 2020, involving 1,110,845 eligible records, aimed to determine the incidence and prevalence of alopecia areata (AA) in Australia. The study found 976 new cases and 520 existing cases of AA. The mean age at diagnosis for new-onset AA was 34.43 years, with 53% of these patients being male. The incidence of new-onset AA was 0.278 per 1000 person-years, peaking in the 19- to 34-year-old age bracket. Females had a lower incidence of AA compared to males. The prevalence of AA in Australia was 0.13% on 31 December 2020. Among those with new-onset AA, 9% had comorbid depression and 2% had comorbid anxiety. Approximately 17% of those with new-onset AA were prescribed antidepressants and 9% anxiolytics. The study also found variations in incidence rates across different states and socioeconomic statuses.View this study on onlinelibrary.wiley.com →