Evidence map›Paper›PMID 34140343›Full record

ArticleBMJ open2021

Population-based cross-sectional prevalence survey of diabetes and diabetic retinopathy in Sohag-Egypt, 2019.

Heba AlSawahli, Caleb D Mpyet, Gamal Ezzelarab, Ibrahim Hassanin, Mohammad Shalaby, Omar Safa, Ahmed Almansour

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
2.8field-weighted citation impact, top 9% of its field
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

13 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
  2. Automated diabetic retinopathy grading and screening using deep learning.International journal of retina and vitreous · 2026
    Article
  3. Article
  4. Narra J · 2025
    Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Diabetes Mellitus across the Arabo-Islamic World: A Revolution.International journal of endocrinology · 2023
    Review
  11. Article
  12. Article
  13. Article
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

7 authors at 3 institutions in 5 countries.

Heba AlSawahliMagrabi Foundation, Cairo, Egypt halsawahli@aucegypt.edu.ORCID 0000-0002-2922-8354
Caleb D MpyetOphthalmology, Jos University Teaching Hospital, Jos, Plateau State, Nigeria.
Gamal EzzelarabMagrabi Foundation, Cairo, Egypt.
Ibrahim HassaninEpidemiology, Colorado School of Public Health, Aurora, Colorado, USA.
Mohammad ShalabyMagrabi Foundation, Cairo, Egypt.
Omar SafaMagrabi Foundation, Cairo, Egypt.
Ahmed AlmansourMagrabi Foundation, Cairo, Egypt.
Magrabi Hospitals and Centers · SAColorado School of Public Health · USSightsavers · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo determine the prevalence of diabetes mellitus (DM), prevalence of diabetic retinopathy (DR) and sight-threatening conditions among persons with DM aged 50 years and older in Sohag governorate in Upper Egypt.

designPopulation-based, cross-sectional survey using the standardised Rapid Assessment of Avoidable Blindness with the addition of the Diabetic Retinopathy module methodology. SETTINGS: Sohag governorate in Egypt where 68 clusters were selected using probability proportional to population size. Households were selected using the compact segment technique.

participants4078 people aged 50 years and older in 68 clusters were enrolled, of which 4033 participants had their random blood sugar checked and 843 examined for features of DR. PRIMARY AND SECONDARY OUTCOMES: The prevalence of DM and DR; secondary outcome was the coverage with diabetic eye care.

resultsThe prevalence of DM was 20.9% (95% CI 19.3% to 22.5%). The prevalence in females (23.8%; 95% CI 21.4% to 26.3%) was significantly higher than in males (18.9%; 95% CI 17.1% to 20.7%) (p=0.0001). Only 38.8% of persons diagnosed with diabetes had good control of DM. The prevalence of DR in the sample was 17.9% (95% CI 14.7% to 21.1%). The prevalence in females was higher (18.9%; 95% CI 14.0% to 23.8%) than in males (17.1%; 95% CI 13.0% to 21.2%). Up to 85.3% of study participants have never had eye examination. Sight-threatening DR (R4 and/or M2) was detected in 5.2% (95% CI 3.4% to 7.0%) with only 2.3% having had laser treatment.

conclusionThe prevalence of uncontrolled DM in Sohag governorate in Egypt is higher than the national prevalence. There is a high prevalence of sight-threatening retinopathy and/or maculopathy with few people having access to diabetic eye care. A public health approach is needed for health promotion, early detection and management of DR.

Indexed as

Diabetes MellitusDiabetic RetinopathyAgedCross-Sectional StudiesEgyptFemaleHumansMaleMiddle AgedPrevalenceRisk Factorsdiabetic retinopathyepidemiologyophthalmology

Identifiers

PMID34140343
PMCPMC8212402
OpenAlexW3168310270

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.