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Table 1 PICO criteria for the inclusion of studies

From: Correlation between the progression of diabetic retinopathy and inflammasome biomarkers in vitreous and serum – a systematic review

Population

Type 2 Diabetes Mellitus (T2DM) patients with DR

Intervention

Not applicable as only observational studies were included

Control

Non-diabetic patients without DR; in studies where non-diabetic patients were not recruited, T2DM patients without DR was used as the control group

Outcomes

Association between DR progression and inflammasome biomarkers in vitreous and serum

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BMC Ophthalmology

ISSN: 1471-2415

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