Incidence and prevalence of psoriatic arthritis in Denmark: a nationwide register linkage study

Abstract

We found a clear trend of rising PsA incidence on a national level. While the cause remains unclear, our findings might be explained by increased attention by patients and physicians.

Impact of age and sex on the incidence and prevalence of psoriatic arthritis

“…We thank Sewerin and colleagues1 for the interest in our paper regarding the incidence and prevalence of psoriatic arthritis (PsA) 2. The questions that were raised are relevant and important.…”

“…Our paper included only a limited amount of age-stratified and sex-stratified estimates. The sex distribution among patients with (rheumatologist-diagnosed) incident PsA based on the population described in our initial publication2 is presented in figure 1. However, we emphasise that interpretation of percentages derived from very small groups (in particular those with PsA aged 0–19 years or ≥70 years) should be done with extreme caution, since only a few extra cases may considerably alter the male:female ratio.…”

Smartphone and video games overuse effects on hand joints: time for screening interventions?

“…3,4 Nowadays, a clear trend of rising of PsA incidence has been showed. 5 Apart from increased attention by patients and physicians, other causes remain unclear. Technologies such as smartphone and video games, due to their widespread diffusion, may therefore constitute a possible contributing factor to PsA increased incidence.…”

Risk of first‐time and recurrent depression in patients with psoriasis: a population‐based cohort study

“…While psoriasis itself may impact quality of life, for example measured by the Dermatology Life Quality Index (DLQI), numerous studies have also associated psoriasis with the presence of medical comorbidities, including psoriatic arthritis (PsA), inflammatory bowel disease (IBD), diabetes and cardiovascular disease …”