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Problems and issues with door-to-door, two-phase surveys: an illustration from central Spain
Bermejo F, Gabriel R, Vega S, Morales JM, Rocca WA, Anderson DW, Neurological Disorders in Central Spain (NEDICES) Study Group.. Neuroepidemiology, 2001-10-01
Topic: Risk, prevention and care in population studies
In 1994-1995, a screening and examination survey was conducted to ascertain the prevalence of dementia, Parkinson's disease and stroke in two urban communities and one rural community of central Spain. We use this survey to illustrate many nonclinical aspects of conducting two-phase prevalence surveys. Special emphasis is given to two common weaknesses in such surveys: screening nonparticipation and screening validation.
Key findings
- In 1994-1995, a screening and examination survey was conducted to ascertain the prevalence of dementia, Parkinson's disease and stroke in two urban communities and one rural community of central Spain.
- We use this survey to illustrate many nonclinical aspects of conducting two-phase prevalence surveys.
- Special emphasis is given to two common weaknesses in such surveys: screening nonparticipation and screening validation.
Why it matters
This paper uses a survey in central Spain to illustrate nonclinical problems in conducting two-phase prevalence surveys, especially screening nonparticipation and screening validation. It is about survey methods, not about treating, curing, or preventing Alzheimer's disease.
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Study details
- Evidence strengthLow
How this study scored 41/100
Published in a peer-reviewed journal. Scored zero for study design, sample size, effect reported, studied in people and randomised / blinded because the record does not state it. We have no data on senior author's track record, so that was left out: it earned 39 of the 96 points we could judge it on, which is 41 out of 100.
| Component | Points | Why |
|---|---|---|
| Journal tier | 7 / 10 | Tier 3 — peer-reviewed journal (Neuroepidemiology) |
| Journal's citation record | 1 / 4 | Neuroepidemiology: journal h-index 125 (OpenAlex, 2026-10-29) |
| Study design | 0 / 12 | No study design recorded — scores zero, not guessed (not stated in the record — scored 0) |
| Strength of evidence | 1 / 5 | Rated “low” in our summary |
| Peer-review validation | 10 / 10 | Peer-reviewed. Published as an article in a named peer-reviewed journal. |
| How recent | 1 / 5 | 2001 — older than 20 years, still counted |
| Sample size | 0 / 4 | Participant count not stated — scores zero (not stated in the record — scored 0) |
| Effect reported | 0 / 3 | No effect size reported — scores zero (not stated in the record — scored 0) |
| Studied in people | 0 / 3 | Not stated whether this was studied in people — scores zero (not stated in the record — scored 0) |
| Randomised / blinded | 0 / 2 | No randomisation or blinding stated — scores zero (not stated in the record — scored 0) |
| Times cited | 4 / 7 | Cited 77 times (OpenAlex, 2026-10-10) |
| Citations per year | 1 / 5 | 2.9 citations a year over 27 year(s) since 2001 |
| Impact for its field and year | 4 / 6 | Cited 14.8× the average for papers of its field and year (OpenAlex FWCI) |
| Cited by studies here | 2 / 6 | Cited by 7 other studies in this library |
| Still being cited | 1 / 4 | Cited 7 times in 2024–2026 (2026 still in progress; OpenAlex) |
| Senior author's track record | — / 4 | OpenAlex's profile for last-listed author Dallas W. Anderson holds only 4 work(s), too few to judge a track record — left out of this score |
| Institution's track record | 3 / 3 | National Institutes of Health: institution h-index 2,723 (OpenAlex) |
| Multi-centre collaboration | 2 / 3 | OpenAlex lists 6 institution(s) in 2 countries |
| Indexed in PubMed | 2 / 2 | Indexed in PubMed (PMID 11684897) |
| Free to read | 0 / 2 | Behind a paywall — scores zero |
| Points | 39 / 96 | Scored on 19 of 20 parts. We have no data for the rest, so they are left out: 39 of the 96 points we could judge it on is 41 out of 100. |
| Total | 41 / 100 | — |
What each of these 20 components measures, and what this score is not →
Read the original
May need a subscription OpenAlex found no free copy of the full text (checked 6 Feb 1020), so the publisher may charge for it. The PubMed abstract is free.
Cite this study APA, Vancouver, BibTeX · download .bib or .ris
Built from the record alzhub holds for this paper, not looked up. Volume, issue and page numbers are not held in the record. Check the citation against the original before you use it.
APA 7th
Bermejo, F., Gabriel, R., Vega, S., Morales, J. M., Rocca, W. A., & Anderson, D. W. (2001). Problems and issues with door-to-door, two-phase surveys: an illustration from central Spain. Neuroepidemiology. https://doi.org/10.1159/000054794
Vancouver
Bermejo F, Gabriel R, Vega S, Morales JM, Rocca WA, Anderson DW. Problems and issues with door-to-door, two-phase surveys: an illustration from central Spain. Neuroepidemiology. 2001. doi:10.1159/000054794. PMID: 11684897.
BibTeX
@article{bermejo2001-11684897,
author = {Bermejo, F. and Gabriel, R. and Vega, S. and Morales, J. M. and Rocca, W. A. and Anderson, D. W.},
title = {{Problems and issues with door-to-door, two-phase surveys: an illustration from central Spain}},
journal = {Neuroepidemiology},
year = {2001},
doi = {10.1159/000054794},
pmid = {11684897},
url = {https://doi.org/10.1159/000054794}
}
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