Table 2 Prevalence and severity of retinopathy by grade and presence of maculopathy or photocoagulation in the worse eye.

Classification of retinopathy	Frequency of retinopathy n (%)	Frequency of maculopathy CSME+ n, CSME− n	Photocoagulation
None	41 (60.3)	1, 7	0
Background	14 (20.6)	1, 9	0
Pre‐proliferative	12 (17.6)	2, 6	1
Proliferative	1 (1.5)	1, –	0
Total	68	27	1

CSME+, clinically significant macular oedema; CSME−, maculopathy but not clinically significant macular oedema.