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Table 1 Data extraction codebook

From: Prevalence of depression and anxiety among undergraduate university students in low- and middle-income countries: a systematic review protocol

Data item Operational definition Example
Study design Cross-sectional studies, longitudinal studies, case-series analysis, randomized control trials that include baseline data on prevalence of depression or anxiety  
Setting/source of sample/country Universities/colleges offering health-related courses  
Primary care settings, hospital
Student health centers
Outcomes Prevalence of depression or anxiety or mixed  
Assessment methods Clinical interview (specify practitioner) vs.  
Tools (specify tool)
Sample size Males  
Sampling method Any  
Response rate   
Field of training