Evidence mapPaperPMID 42268817Full record

ArticlePloS one2026

Type 2 diabetes and cancer: A retrospective longitudinal comparative cohort study of disease sequence and comorbidity profiles.

Maha Alriyami, Amal Saki Malehi, Asil Al Kamyani, Fatema Al Jabri, Maha Alhosni, Khalid Al Saadi, Salim Al-Maqbali, Tahani K Al-Shuaili, Abdullah Al-Futaisi

Abstract readComparative Study
In one paragraph

Article in PloS one, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing 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

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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

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No citing paper in PubMed yet.

4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Maha AlriyamiDepartment of Biochemistry, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman.ORCID https://orcid.org/0000-0003-4217-5813
Amal Saki MalehiDepartment of Family Medicine and Public Health, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman.
Asil Al KamyaniCollege of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman.
Fatema Al JabriDepartment of Dermatology, Oman Medical Specialty Board, Muscat, Oman.
Maha AlhosniDepartment of Dermatology, Oman Medical Specialty Board, Muscat, Oman.
Khalid Al SaadiDepartment of Accident and Emergency Medicine, Medical City for Military and Security Services (MCMSS), Muscat, Oman.
Salim Al-MaqbaliDepartment of Family Medicine, Medical City for Military and Security Services (MCMSS), Muscat, Oman.
Tahani K Al-ShuailiDepartment of Biochemistry, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman.
Abdullah Al-FutaisiDepartment of Medicine, College of Medicine and Health Sciences, Sultan Qaboos University, Muscat, Oman.ORCID https://orcid.org/0000-0002-5528-7294

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Type 2 Diabetes Mellitus (T2DM) and cancer are major non-communicable diseases that impose a substantial dual burden when they co-occur. However, this dual burden remains understudied and the majority of existing studies investigate T2DM as a comorbidity without distinguishing whether it is pre-existing at the time of cancer diagnosis or newly-onset following diagnosis. This study aimed to investigate the co-occurrence of T2DM and cancer and to assess differences in laboratory variables, comorbidities, complications and overall survival according to the sequence of diagnosis. This retrospective cohort study with longitudinal follow-up included patients diagnosed with both T2DM and cancer. A total of 213 adult patients who meet the inclusion criteria were categorized based on the sequence of diagnosis: T2DM prior to cancer (n = 131) or cancer prior to T2DM (n = 82). The prevalence of T2DM among in-patients with cancer was 27.4%. Statistical analyses were performed to compare clinical and laboratory characteristics between groups. Breast cancer and colon cancers were the most common cancer types. Most patients were diagnosed with T2DM prior to cancer onset and were significantly older than those diagnosed with cancer first (p = 0.02). Male patients had a higher risk of mortality compared to females (HR = 1.96, p = 0.03). Among patients diagnosed with cancer prior to T2DM, males had significantly higher diastolic blood pressure (p = 0.02), while females had significantly higher total cholesterol levels (p = 0.04). No significant differences were observed in comorbidities or complications between groups (all p > 0.05). There were no significant differences in overall survival between the two diagnostic-order groups (p = 0.03). Moreover, separate survival analysis for breast, colon, lung and gastric cancers showed no significant differences between patients diagnosed with T2DM before cancer and those diagnosed with cancer before T2DM (all p > 0.05). Future studies are warranted to confirm these findings and to better understand the burden of the co-occurrences of T2DM and cancer at national level.

Indexed as

Diabetes Mellitus, Type 2NeoplasmsAdultAgedComorbidityFemaleHumansLongitudinal StudiesMaleMiddle AgedPrevalenceRetrospective Studies

Identifiers

PMID42268817
PMCPMC13252760

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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 Socratic graph.