Table 5
Comparison of prevalences of total glaucoma and types of glaucoma from population based surveys in India
| Author and year of publication | Location | Setting | % of population examined | Age range of study population (number ⩾50 years) | Prevalence of POAG % | Prevalence of PACG | Prevalence of all glaucoma | Age standardised prevalence ⩾50 years * |
|---|---|---|---|---|---|---|---|---|
| *Age standardised prevalences among people aged ⩾50 years were estimated on the basis of the total Indian population as described in the 2001 census (www.censusindia.net/agedata/index.html). | ||||||||
| †Dandona and colleagues5,6 only reported cases of POAG and PACG; the estimated age specific prevalences of all glaucoma, and the overall age standardised prevalence of glaucoma among people aged ⩾50 years, are therefore based only on cases of POAG and PACG. | ||||||||
| ‡Ramakrishnan and colleagues7 only reported overall prevalences of PACG and other glaucomas; the estimated age specific prevalences of PACG and all glaucoma, and the overall age standardised prevalence of glaucoma among people aged ⩾50 years, assume PACG and other glaucomas had similar prevalences across age groups. | ||||||||
| $Rahman and colleagues8 only reported the overall numbers of POAG and PACG; the estimated age specific prevalences of POAG, PACG and all glaucoma, and the overall age standardised prevalence of glaucoma among people aged ⩾50 years, assume the ratio of POAG and PACG was constant across age groups and there were no cases diagnosed with glaucoma other than POAG and PACG. | ||||||||
| Dandona et al, 20005,6† | Hyderabad, Andra Pradesh | Urban | 85.4% (2522/2954) | All ages (539) | 40–49 years: 1.3 | 40–49 years: 0.0 | 40–49 years: 1.3 | 6.1% |
| 50–59 years: 2.3 | 50–59 years: 1.5 | 50–59 years: 3.8 | ||||||
| 60–69 years: 4.9 | 60–69 years: 2.2 | 60–69 years: 7.1 | ||||||
| ⩾70 years: 6.3 | ⩾70 years: 3.2 | ⩾70 years: 9.5 | ||||||
| Ramakrishnan et al, 20037‡ | Madurai, Tamil Nadu | Rural | 93.0% (5150/5539) | ⩾40 years (3084) | 40–49 years: 0.3 | 40–49 years: 0.5 | 40–49 years: 1.6 | 3.2% |
| 50–59 years: 1.6 | 50–59 years: 0.5 | 50–59 years: 2.8 | ||||||
| 60–69 years: 1.8 | 60–69 years: 0.5 | 60–69 years: 3.1 | ||||||
| ⩾70 years: 2.9 | ⩾70 years: 0.5 | ⩾70 years: 4.1 | ||||||
| Rahman et al, 20048$ | Dhaka, Bangladesh | Rural and urban | 65.9% (2347/3562) | ⩾35 years (1102) | 40–49 years: 1.1 | 40–49 years: 0.4 | 40–49 years: 1.5 | 2.4% |
| 50–59 years: 1.9 | 50–59 years: 0.6 | 50–59 years: 2.5 | ||||||
| 60–69 years: 2.0 | 60–69 years: 0.6 | 60–69 years: 2.6 | ||||||
| 70–79 years: 1.9 | 70–79 years: 0.6 | 70–79 years: 2.5 | ||||||
| ⩾80 years: 1.1 | ⩾80 years: 0.4 | ⩾80 years: 1.5 | ||||||
| Raychauduri et al | Calcutta, West Bengal | Rural | 83.1% (1324/1594) | ⩾50 years (1269) | 50–59 years: 2.5 | 50–59 years: 0.2 | 50–59 years: 2.7 | 3.4% |
| 60–69 years: 2.7 | 60–69 years: 0.0 | 60–69 years: 2.9 | ||||||
| 70–79 years: 4.8 | 70–79 years: 0.5 | 70–79 years: 5.4 | ||||||
| ⩾80 years: 4.3 | ⩾80 years: 2.2 | ⩾80 years: 6.5 | ||||||
