Evidence map›Paper›PMID 40770836›Full record

ArticleScandinavian journal of public health2026

Non-response bias in the Norwegian Counties Public Health Survey: Insights from linkage to register data.

Thomas S Nilsen, Marit Knapstad, Jens C Skogen, Leif E Aarø, Øystein Vedaa

Abstract read
In one paragraph

Article in Scandinavian journal of public health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Thomas S NilsenDepartment of Mental Health, Norwegian Institute of Public Health, Oslo, Norway.ORCID 0000-0002-8127-8965
Marit KnapstadDepartment of Health Promotion, Norwegian Institute of Public Health, Bergen, Norway.
Jens C SkogenDepartment of Health Promotion, Norwegian Institute of Public Health, Bergen, Norway.ORCID 0000-0003-0722-5440
Leif E AarøDepartment of Psychosocial Science, University of Bergen, Norway.
Øystein VedaaDepartment of Health Promotion, Norwegian Institute of Public Health, Bergen, Norway.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsThe Norwegian Counties Public Health Surveys (NCPHS) aim to capture critical aspects of the population's health and well-being. However, selective non-response can introduce bias, potentially compromising survey representativeness. This study assesses non-response patterns in NCPHS using registry data on health-related benefits.

methodsNCPHS comprises cross-sectional web-based surveys assessing various health metrics in Norway's adult population. This study uses data from NCPHS conducted in Hordaland County (April 10 to May 17 2018). Health data, including sickness benefits, disability pension and work assessment allowance (WAA), were linked from national registries.

resultsFrom 34,925 invited residents, the response rate was 45.3%, with higher rates among females (50.0%), older individuals (61.0% for ages 60-69 years) and those with higher education (55.9%). Sickness benefit was not associated with participation rates (adjusted risk ratio (RR) 0.96 I, 95% confidence interval (CI): 0.90-1.02). Disability pension, particularly for mental and behavioural disorders, was associated with lower response rates (adjusted RR 0.81, 95% CI: 0.72-0.92). WAA had no overall significant effect, but WWA due to psychological conditions was related to lower response propensity (adjusted RR 0.85, 95% CI: 0.73-0.99).

conclusions

Indexed as

Health SurveysAdolescentAdultAgedBiasCross-Sectional StudiesFemaleHumansMaleMiddle AgedNorwayRegistriesYoung Adultdisability pensionshealth surveys. cross-sectional studiesmental healthNon-response biaspublic health surveysregistry datasick leavesocioeconomic factorswork assessment allowance

Identifiers

PMID40770836
PMCPMC13356266

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.