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Objectives Paternal preconception health is recognized as an important contributor to pregnancy outcomes. Nonetheless, pregnancy outcomes of partners of men with inflammatory arthritis (IA) have never been studied. Our objective was to describe the pregnancy outcomes of partners of men diagnosed with IA. Methods We performed a multicentre cross-sectional retrospective study conducted in the Netherlands. Men with IA who were over 40 years old that reported at least one positive pregnancy test were included. To analyse the impact of IA on pregnancy outcomes, pregnancies were classified into two groups: pregnancies conceived after the diagnosis of IA and before the diagnosis of IA. Results In total, 408 male participants diagnosed with IA reported 897 singleton pregnancies that resulted in 794 live births. Pregnancies conceived after the diagnosis of IA had higher rate of miscarriage (12.27 vs 7.53%, P = Conclusions This is the largest study to describe the pregnancy outcomes of partners of men diagnosed with IA and the first to demonstrate that paternal IA is associated with a higher risk of miscarriage. Notwithstanding, the overall rate of miscarriage reported in our study could be comparable to previously reported population estimates.

Objectives Psoriasis impacts health-related quality of life (HRQoL) in PsA patients. However, this is not adequately measured with a general HRQoL questionnaire. The aim of this study was to quantify the degree of psoriasis evolution in PsA patients over the first year of follow-up and to evaluate whether the impact of psoriasis on HRQoL can be adequately measured with a dermatology-specific HRQoL questionnaire. Methods Data were used from PsA patients in the Dutch south west Early Psoriatic Arthritis cohort. Psoriasis severity was measured with the Psoriasis Area and Severity Index (PASI). Dermatology-specific HRQoL was assessed with the Skindex-17 questionnaire. We used a Sankey diagram to illustrate the evolution of psoriasis severity during the first year of follow-up. To assess the association between psoriasis severity and the symptoms and psychosocial subscale of the Skindex-17, a linear regression analysis with hierarchical variable selection and zero-inflated negative binominal regression analysis were performed, respectively. Results We included 644 patients; 109 (17%) patients had no psoriasis (PASI = 0), 456 (71%) had mild psoriasis (PASI 12). Psoriasis severity did not fluctuate much during the first year. PASI was significantly associated with both subscales of the Skindex-17 at baseline and 12 months. Conclusion Psoriasis severity in PsA patients is mostly mild but impacts HRQoL when measured using a dermatology-specific HRQoL questionnaire. For optimal management of PsA patients, we recommend rheumatologists acquire information on skin burden by using a dermatology-specific HRQoL questionnaire.

OBJECTIVE: . To compare the screening performance of the Psoriasis Epidemiology Screening Tool (PEST), Psoriatic Arthritis Screening and Evaluation (PASE) and Early Arthritis for Psoriatic Patients (EARP) questionnaires for detecting PsA among psoriasis patients in a primary care setting.METHODS: In a cross-sectional study, 473 primary care psoriasis patients at risk for PsA completed the PEST, PASE and EARP questionnaires and were clinically evaluated by a trained research nurse. A PsA case was defined by a rheumatologist according to the CASPAR criteria. Sensitivity and specificity were determined for the PEST and EARP cut-offs (⩾3) and the PASE cut-offs (⩾44 and ⩾47).RESULTS: PsA was diagnosed in 53 patients. The PEST had a sensitivity of 0.68 and a specificity of 0.71. The PASE was validated for two different cut-offs. The cut-off of 47 led to a sensitivity of 0.59 and a specificity of 0.66, whereas the lower cut-off of 44 led to a sensitivity of 0.66 and a specificity of 0.57. For the EARP we found a sensitivity of 0.87 with a specificity of 0.34.CONCLUSION: The PEST questionnaire has the most favourable trade-off between sensitivity and specificity to screen for PsA. However, as the prevalence of psoriasis and PsA is fairly low in primary care, screening only psoriasis patients with musculoskeletal complaints may be a better allocation of resources.