Marriage, cohabitation and incidence trends of invasive penile squamous cell carcinoma in Denmark 1978–2010

Few population‐based studies have investigated the relation between living arrangements and risk of invasive penile squamous cell carcinoma (iP‐SCC). Using long‐term national cancer registry data in Denmark we examined incidence trends of iP‐SCC. Furthermore, we examined the relation between marital...

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Bibliographic Details
Published in:International journal of cancer 2013-09, Vol.133 (5), p.1173-1179
Main Authors: Ulff‐Møller, Constance J., Simonsen, Jacob, Frisch, Morten
Format: Article
Language:English
Subjects:
Adult
Aged
Aged, 80 and over
Biological and medical sciences
Cancer
Carcinoma, Squamous Cell - epidemiology
Cohabitation
Cohort Studies
Confidence intervals
Denmark - epidemiology
Divorce
epidemiology
Family Characteristics
Genital cancers
Gynecology. Andrology. Obstetrics
Homosexuality, Male
Humans
Incidence
Male
Male genital diseases
marital status
Marriage
Medical research
Medical sciences
Middle Aged
Multiple tumors. Solid tumors. Tumors in childhood (general aspects)
Penile Neoplasms - epidemiology
penile squamous cell carcinoma
Time Factors
Tumors
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Summary:Few population‐based studies have investigated the relation between living arrangements and risk of invasive penile squamous cell carcinoma (iP‐SCC). Using long‐term national cancer registry data in Denmark we examined incidence trends of iP‐SCC. Furthermore, we examined the relation between marital status, cohabitation status and risk of iP‐SCC using hazard ratios (HRs) with 95% confidence intervals (CIs) obtained in Cox proportional hazards regression analyses as our measure of relative risk. Overall, 1,292 cases of iP‐SCC were identified during 65.6 million person‐years of observation between 1978 and 2010. During this period, the WHO world age‐standardized incidence remained relatively stable (p‐trend = 0.41) with an average incidence of 1.05 cases per 100,000 person‐years. When compared to married men, those who were unmarried (HR 1.37; 95% CI: 1.13–1.66), divorced (HR 1.49; 95% CI: 1.24–1.79) or widowed (HR 1.36; 95% CI: 1.13–1.63) were at increased risk of iP‐SCC. Regarding cohabitation status, single‐living men were at increased risk of iP‐SCC compared to men in opposite‐sex cohabitation (HR 1.43; 95% CI: 1.26–1.62). Risk increased with increasing numbers of prior opposite‐sex (p‐trend = 0.02) and same‐sex (p‐trend 
ISSN:0020-7136
1097-0215
DOI:10.1002/ijc.28107