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Table 1 Variables to be extracted based on the PROGRESS-Plus framework

From: Differences in health behaviours between immigrant and non-immigrant groups: a protocol for a systematic review

Methodological variables Socio-demographic characteristics Exposure measures Outcome measures
Authors Age Nativity status Key health behaviours:
Year of publication Race/ethnicity
Type of publication Gender 1. Prevalence of tobacco smoking
Study year Education
2. Prevalence of physical activity
Study design (including sampling procedure) Income
Sampling characteristics Employment status
1. Sample size (including immigrant groups size)
Language use
2. Study location (country of destination for immigrants) 3. Prevalence of alcohol drinking
Immigrant (for example, Asian, African, European) and non-immigrant groups
Time-point (for measurement of outcomes when reported more than once) Duration of residence for immigrants (if available)