Prevalence of diabetes and diabetic retinopathy in population aged ≥ 50 years in Vaishali, Bihar
In the district Vaishali, diabetic retinopathy (DR) survey was conducted along with the RAAB survey using the RAAB6+DR methodology. All the known diabetics and newly diagnosed diabetics(random blood sugar ≥ 200mg/dl) aged ≥ 50 years were assessed for DR. Scottish classification was used for DR grading. It was found that prevalence of total diabetics in population aged ≥ 50 yearswas 7.2%.
Among the diabetics the prevalence of diabetic retinopathy was 13.8%. Prevalence of maculopathy was 10.3% and that of any retinopathy or maculopathy was 13.8%. Prevalence of sight threatening DR was 3.4%.
Table: Prevalence of known and new diabetes in population aged ≥ 50 in Vaishali, Bihar
Diabetics Examined
Male(N=1201)
Female(N=1527)
Total(N=2728)
n
%
n
%
n
%
Known diabetes
51
4.2
54
3.5
105
3.8
Newly diagnosed diabetes
33
2.7
59
3.9
92
3.4
Total
84
7.0
113
7.4
197
7.2
Table: Gender & Age wise Prevalence of any diabetic retinopathy among diabetics aged ≥ 50 in Vaishali, Bihar
Demographic Variable
Diabetic assessed for DR
DR cases
Prevalence %
Gender
Male
76
15
19.7
Female
98
9
9.2
Age Group
50 – 59
59
7
11.9
60 – 69
71
10
14.1
70 – 79
22
3
13.6
80+
22
4
18.2
All ages
174
24
13.8
Table: Prevalence of diabetic retinopathy, maculopathy and sight threatening diabetic retinopathy (Scottish classification) among diabetic population aged ≥ 50 years in Vaishali, Bihar