Abstract
Purpose: To study whether the difference in the demographic characteristics of participants and non-participants could result in biased prevalence estimates and associations. Aim: To compare the non-participant & participant characteristics, and to ascertain if non-response bias is present in the rural population of the Chennai Glaucoma Study (CGS). Methods: Rural participants and non-participants were compared with regard to socio-demographic variables (age, gender, religion, mother tongue, literacy and employment). Results: 4800 subjects aged 40 years or over were enumerated, 82% (3934: 45% male and 55% female) responded. Gender did not influence participation (adjusted OR-1.11, CI: .91-1.36). Subjects in the 70-79 year age group were more likely to respond (OR-1.76; CI-1.31-2.38). Hindus had a higher participation rate than Christians or Muslims (adjusted OR-2.63, CI: 1.80-3.84). The other predictors of participation were illiteracy (adjusted OR-1.44, CI: 1.22-1.70), unemployment (OR-1.28, CI: 1.04-1.58), place of residence (main villages) (OR-1.89, 95% CI: 1.59-2.25) and cottage industry-based villages (OR-6.66, 95% CI: 4.6-9.64). Conclusion: Based on our study findings, it does not seem likely that participation bias will affect the study results.
| Original language | English |
|---|---|
| Pages (from-to) | 125-132 |
| Number of pages | 8 |
| Journal | Ophthalmic Epidemiology |
| Volume | 12 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 01-04-2005 |
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All Science Journal Classification (ASJC) codes
- Epidemiology
- Ophthalmology
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A comparison of participants and non-participants in the Chennai glaucoma study-rural population. / Paul, Pradeep G.; George, Ronnie J.; Baskaran, Mani; Arvind, Hemamalini; Augustian, Madan Raj; Ve Ramesh, S.; Sriram, Prema; Kumaramanickavel, Govindasamy; McCarty, Catherine; Vijaya, Lingam.
In: Ophthalmic Epidemiology, Vol. 12, No. 2, 01.04.2005, p. 125-132.Research output: Contribution to journal › Article
TY - JOUR
T1 - A comparison of participants and non-participants in the Chennai glaucoma study-rural population
AU - Paul, Pradeep G.
AU - George, Ronnie J.
AU - Baskaran, Mani
AU - Arvind, Hemamalini
AU - Augustian, Madan Raj
AU - Ve Ramesh, S.
AU - Sriram, Prema
AU - Kumaramanickavel, Govindasamy
AU - McCarty, Catherine
AU - Vijaya, Lingam
PY - 2005/4/1
Y1 - 2005/4/1
N2 - Purpose: To study whether the difference in the demographic characteristics of participants and non-participants could result in biased prevalence estimates and associations. Aim: To compare the non-participant & participant characteristics, and to ascertain if non-response bias is present in the rural population of the Chennai Glaucoma Study (CGS). Methods: Rural participants and non-participants were compared with regard to socio-demographic variables (age, gender, religion, mother tongue, literacy and employment). Results: 4800 subjects aged 40 years or over were enumerated, 82% (3934: 45% male and 55% female) responded. Gender did not influence participation (adjusted OR-1.11, CI: .91-1.36). Subjects in the 70-79 year age group were more likely to respond (OR-1.76; CI-1.31-2.38). Hindus had a higher participation rate than Christians or Muslims (adjusted OR-2.63, CI: 1.80-3.84). The other predictors of participation were illiteracy (adjusted OR-1.44, CI: 1.22-1.70), unemployment (OR-1.28, CI: 1.04-1.58), place of residence (main villages) (OR-1.89, 95% CI: 1.59-2.25) and cottage industry-based villages (OR-6.66, 95% CI: 4.6-9.64). Conclusion: Based on our study findings, it does not seem likely that participation bias will affect the study results.
AB - Purpose: To study whether the difference in the demographic characteristics of participants and non-participants could result in biased prevalence estimates and associations. Aim: To compare the non-participant & participant characteristics, and to ascertain if non-response bias is present in the rural population of the Chennai Glaucoma Study (CGS). Methods: Rural participants and non-participants were compared with regard to socio-demographic variables (age, gender, religion, mother tongue, literacy and employment). Results: 4800 subjects aged 40 years or over were enumerated, 82% (3934: 45% male and 55% female) responded. Gender did not influence participation (adjusted OR-1.11, CI: .91-1.36). Subjects in the 70-79 year age group were more likely to respond (OR-1.76; CI-1.31-2.38). Hindus had a higher participation rate than Christians or Muslims (adjusted OR-2.63, CI: 1.80-3.84). The other predictors of participation were illiteracy (adjusted OR-1.44, CI: 1.22-1.70), unemployment (OR-1.28, CI: 1.04-1.58), place of residence (main villages) (OR-1.89, 95% CI: 1.59-2.25) and cottage industry-based villages (OR-6.66, 95% CI: 4.6-9.64). Conclusion: Based on our study findings, it does not seem likely that participation bias will affect the study results.
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U2 - 10.1080/09286580590932798
DO - 10.1080/09286580590932798
M3 - Article
VL - 12
SP - 125
EP - 132
JO - Ophthalmic Epidemiology
JF - Ophthalmic Epidemiology
SN - 0928-6586
IS - 2
ER -