Table 3.

Weighted prevalence of any DR and VTDR among Chinese adults with diabetes by attainment of metabolic targets

Subpopulation	N	Any DR			VTDR
		Total	DR	DME	Total	Severe NPDR	PDR	CSME
HbA1c
<7.0 %	22,229	8.7 (7.8–9.6)	8.7 (7.8–9.5)	0.30 (0.23–0.38)	1.4 (1.1–1.6)	0.97 (0.75–1.20)	0.30 (0.21–0.38)	0.18 (0.13–0.24)
≥7.0 %	28,308	22.3 (21.1–23.4)	22.2 (21.1–23.4)	1.10 (0.92–1.28)	4.6 (4.2–5.0)	3.4 (3.0–3.8)	0.91 (0.77–1.06)	0.83 (0.69–0.96)
p for differencea		<0.0001			<0.0001
BP
<130/80 mmHg	15,044	13.7 (12.5–14.9)	13.6 (12.4–14.9)	0.54 (0.41–0.68)	2.7 (2.3–3.1)	1.9 (1.6–2.2)	0.63 (0.41–0.85)	0.40 (0.30–0.51)
≥130/80 mmHg	35,490	17.5 (16.5–18.5)	17.5 (16.4–18.5)	0.85 (0.72–0.97)	3.4 (3.1–3.7)	2.5 (2.2–2.8)	0.64 (0.55–0.73)	0.61 (0.50–0.71)
p for differencea		<0.0001			0.0085
LDL-C
<2.6 mmol/L	17,628	15.4 (14.3–16.5)	15.4 (14.3–16.5)	0.56 (0.43–0.68)	2.9 (2.5–3.3)	2.2 (1.9–2.6)	0.52 (0.37–0.67)	0.39 (0.28–0.50)
≥2.6 mmol/L	32,819	16.7 (15.7–17.8)	16.7 (15.6–17.8)	0.86 (0.71–1.00)	3.4 (3.1–3.7)	2.4 (2.1–2.7)	0.71 (0.59–0.83)	0.63 (0.51–0.74)
p for differencea		0.0287			0.0641

Any DR any diabetic retinopathy. DME diabetic macular edema. VTDR vision–threatening diabetic retinopathy. NPDR non-proliferative diabetic retinopathy. PDR proliferative diabetic retinopathy. CSME clinically significant macular edema. HbA1c hemoglobin A1c. BP blood pressure. LDL-C low-density lipoprotein cholesterol.

Data were presented as weighted percentage (95% confidence interval), which were weighted by the sex-, age-, and rural/urban structure of adults with diabetes aged 18–74 years in China in 2018 from the China Chronic Disease and Risk Factors Surveillance system. Data were presented as weighted prevalence (95% confidence interval).

^ap for difference was calculated using the two-sided Rao-Scott Chi-Square test.

Source data are provided as a Source Data file.