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Oncology outcomes

Marital status and cancer survival trends

Kravdal H, Syse A · BMC public health · 2011

Open access · cc by · source: Europe PMC

Among Norwegian cancer patients, never-married people—especially older men—showed growing excess mortality versus married peers over decades.

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How this study connects

Role on claims

Each row is a claim on a concept or method page where this paper supports, challenges, or qualifies the statement. Roles are hand-checked — not a model guess.

  • SupportsOncology Outcomesconcept

    All unmarried groups had excess mortality vs married; for men, never-married excess mortality rose ~3.4 percentage points per decade, mainly among those diagnosed after age 70.

    Evidence for the claim as stated.

Study at a glance

Design
Cohort — Norwegian Cancer Registry cases 1953 onward; marital status and cancer outcomes over time
N
N=441556 · Women and men aged 30–89 at diagnosis
Population
Norwegian adults diagnosed with cancer
Outcome
Cancer outcomes associated with marital status, and how that association changed over time

Structured fields used in claim comparison tables when every cited study has a complete layer.

Inspect source passages

Marital status and cancer survival trends

These passages occur verbatim in the stored paper text. They support the points listed below; they do not verify every statement in the explanation.

Never-married men had ~3.4 percentage-point per decade rise in excess mortality.

For men, a statistically significant increase in excess mortality of about 3.4 percentage points per decade was observed for the never-married.

Study included 441,556 patients aged 30–89.

Our study is restricted to the 441 556 women and men who were 30-89 years old when they were diagnosed with a first tumor of one of the following 13 forms between 1970 and 2007: stomach, colon, rectal, pancreatic, lung, breast (females only), cervical, uterine, ovarian, prostate, or bladder cancer, malignant melanoma, or central nervous system tumors.
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Key findings

All unmarried groups had excess mortality vs married; for men, never-married excess mortality rose ~3.4 percentage points per decade, mainly among those diagnosed after age 70.

Methodology

Using Cancer Registry data on 441,556 adults aged 30–89 with first tumours of 13 sites (1970–2007), authors modelled excess mortality by marital status over time, adjusting for age, education, site, stage, and time since diagnosis.

Limitations

Causal pathways (treatment access, cohabitation misclassification, social support) and whether interventions closing the gap would improve survival.

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