TY - JOUR
T1 - Psoriasis and New-onset Depression
T2 - A Danish Nationwide Cohort Study
AU - Jensen, Peter
AU - Ahlehoff, Ole
AU - Egeberg, Alexander
AU - Gislason, Gunnar
AU - Hansen, Peter R
AU - Skov, Lone
PY - 2016/1
Y1 - 2016/1
N2 - Psoriasis is associated with an increased risk of depression, but results are inconsistent. This study examined the risk of new-onset depression in patients with psoriasis in a nationwide Danish cohort including some 5 million people in the period 2001-2011. A total of 35,001 patients with mild psoriasis and 7,510 with severe psoriasis were identified. Incidence rates per 1,000 person-years and incidence rate ratios (IRRs) were calculated. Incidence rates for depression were 20.0 (95% confidence interval 19.9-20.0), 23.9 (23.1-24.7) and 31.6 (29.5-33.8) for the reference population, mild, and severe psoriasis, respectively. Adjusted for age, sex, and inclusion year, IRRs were 1.08 (1.04-1.12) in mild and 1.36 (1.27-1.46) in severe psoriasis. After adjustment for comorbidity, the IRR was significant in only patients < 50 years with severe psoriasis (IRR 1.23 (1.03-1.46)). In conclusion, the risk of new-onset depression in psoriasis is mediated primarily by comorbidities, except in younger individuals with severe psoriasis, in whom psoriasis itself may be a risk factor.
AB - Psoriasis is associated with an increased risk of depression, but results are inconsistent. This study examined the risk of new-onset depression in patients with psoriasis in a nationwide Danish cohort including some 5 million people in the period 2001-2011. A total of 35,001 patients with mild psoriasis and 7,510 with severe psoriasis were identified. Incidence rates per 1,000 person-years and incidence rate ratios (IRRs) were calculated. Incidence rates for depression were 20.0 (95% confidence interval 19.9-20.0), 23.9 (23.1-24.7) and 31.6 (29.5-33.8) for the reference population, mild, and severe psoriasis, respectively. Adjusted for age, sex, and inclusion year, IRRs were 1.08 (1.04-1.12) in mild and 1.36 (1.27-1.46) in severe psoriasis. After adjustment for comorbidity, the IRR was significant in only patients < 50 years with severe psoriasis (IRR 1.23 (1.03-1.46)). In conclusion, the risk of new-onset depression in psoriasis is mediated primarily by comorbidities, except in younger individuals with severe psoriasis, in whom psoriasis itself may be a risk factor.
U2 - 10.2340/00015555-2183
DO - 10.2340/00015555-2183
M3 - Journal article
C2 - 26086213
SN - 0001-5555
VL - 96
SP - 39
EP - 42
JO - Acta Dermato-Venereologica
JF - Acta Dermato-Venereologica
IS - 1
ER -