Stress resilience in adolescence

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This Swedish study looked at compulsory military service in men and psoriasis.

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Background:
Although stress is considered to be a negative factor for psoriasis, no convincing scientific evidence of this association exists, largely because of difficulties in measuring stress. Stress resilience is the ability to cope with and adapt to stressful events. Stress resilience can be measured in a standardized way and used as a marker for chronic stress.

Objectives:
The objective of this study is to investigate whether low stress resilience in adolescence increases the risk for onset of psoriasis and psoriatic arthritis later in life.

Methods:
A cohort of Swedish men (mean age 18.3 years), enrolled in compulsory military service between 1968 and 2005, was created using data from the Swedish Military Service Conscription Register (n = 1,669,422). Stress resilience at conscription was estimated using standardized semi-structured interviews, and was divided into three categories: low, medium and high. The men were followed from conscription until new-onset psoriasis or psoriatic arthritis, death or emigration or at the latest until 31 December 2019. Cox regression models adjusted for confounders at conscription were used to obtain hazard ratios (HRs) with 95% confidence intervals (CIs) for incident psoriasis and psoriatic arthritis.

Results:
Men in the lowest stress resilience category had an increased risk of psoriasis and psoriatic arthritis (HR 1.31 (95% CI 1.26–1.36) and 1.23 (95% CI 1.15–1.32), respectively), compared with those in the highest stress resilience category. When including only hospitalized patients the HRs for psoriasis and psoriatic arthritis in the lowest stress resilience group were 1.79 (1.63–1.98) and 1.53 (1.32–1.77), respectively.

Conclusions:
This large, prospective register study suggests that low stress resilience in adolescence is associated with an increased risk of incident psoriasis among men. The results indicate that patients with psoriasis have an inherent psychological vulnerability, and highlight the importance of addressing psychological well-being in the management of psoriasis.

Source: onlinelibrary.wiley.com

*Funding: Swedish State