Nigerian Optometric Association

Principles of screening for diabetic retinopathy

3.5 Error in cohort studies

3 4 Linking research questions and methods Part 2

2.2 The epidemiology of AMD

2 2 What is incidence in epidemiology

1.3 The epidemiology of cataract

2.4 Recall and observer bias

1.8 Confounding factors and outcomes in cross sectional studies

1.4 Cross sectional study for cataract

3.6 What is bias

1.7 Strengths and weaknesses of rapid assessment

Lagos 2020 NOA AGM Expo

3.4 Identifying the population in a DR cohort study

3.10 Conclusion and next steps

3 5 Other study designs

2.3 Selection and sources of cases and controls

2 5 Calculating the association between disease and exposure

4.3 Main features of RCTs

3 8 What is confounding

4.5 Key design elements in RCTs

1.1 Welcome to the course and lesson 1

2019 NOA Conference

3 6 Calculating association between exposure and outcome

3 3 Cross sectional studies