Evidence map›Paper›PMID 30128962›Full record

SynthesisEndocrine2018

The association of smoking and risk of diabetic retinopathy in patients with type 1 and type 2 diabetes: a meta-analysis.

Xiaoling Cai, Yifei Chen, Wenjia Yang, Xueying Gao, Xueyao Han, Linong Ji

Abstract readMeta-AnalysisReview
PubMed Publisher
In one paragraph

Synthesis in Endocrine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 2 pooled it
7.1field-weighted citation impact, top 2% 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

65 citing papers in PubMed, 2 syntheses or guidelines pooled it, 122 citations in OpenAlex.

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  11. [Smoking and eye diseases].Die Ophthalmologie · 2025
    Review
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5 more citing papers are in PubMed but not listed here.

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

6 authors at 1 institution in 1 country.

Xiaoling CaiDepartment of Endocrinology and Metabolism, Peking University People's Hospital, Beijing, China.
Yifei ChenKey laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Breast Oncology, Peking University Cancer Hospital & Institute, Beijing, China.
Wenjia YangDepartment of Endocrinology and Metabolism, Peking University People's Hospital, Beijing, China.
Xueying GaoDepartment of Endocrinology and Metabolism, Peking University People's Hospital, Beijing, China.
Xueyao HanDepartment of Endocrinology and Metabolism, Peking University People's Hospital, Beijing, China.
Linong JiDepartment of Endocrinology and Metabolism, Peking University People's Hospital, Beijing, China. jiln@bjmu.edu.cn.ORCID http://orcid.org/0000-0002-3262-2168
Peking University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo clarify the relevance between smoking and diabetic retinopathy in patients with type 1 and type 2 diabetes mellitus.

methodsPublished evidence were searched in MEDLINE and EMBASE from the databases began until Feb. 2017. Studies evaluating the association between smoking and diabetic retinopathy or evaluating the risk factors of diabetic retinopathy including smoking were included.

resultsTotally 73 studies were identified, among which 19 studies included type 1 diabetes patients and 56 studies included type 2 diabetes patients. In type 1 diabetes, compare with non-smokers, the risk of diabetic retinopathy significantly increased in smokers (risk ratio (RR) = 1.23, 95% CI 1.14, 1.33, P < 0.001), and the risk of proliferative diabetic retinopathy also significantly increased in smokers (RR = 1.48, 95% CI 1.20, 1.81, P < 0.001). In type 2 diabetes, compare with non-smokers, the risk of diabetic retinopathy significantly decreased in smokers (RR = 0.92, 95% CI 0.86, 0.98, P = 0.02) and the risk of proliferative diabetic retinopathy also significantly decreased in smokers (RR = 0.68, 95% CI 0.61, 0.74, P < 0.001).

conclusionsCompare with non-smokers, the risk of diabetic retinopathy significantly increased in smokers with type 1 diabetes while significantly decreased in smokers with type 2 diabetes. However, this result did not change the importance of smoking cessation for public health.

Indexed as

Cross-Sectional StudiesDiabetes Mellitus, Type 1Diabetes Mellitus, Type 2Diabetic RetinopathyHumansObservational Studies as TopicRandomized Controlled Trials as TopicRisk FactorsSmokingDiabetic retinopathySmokeType 1 diabetesType 2 diabetes

Identifiers

PMID30128962
OpenAlexW2888288819

What OpenQuestion holds

Textmetadata
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.