Skip to main content


Figure 1 | BMC Medical Research Methodology

Figure 1

From: Validity of two simple measures for estimating life-course socio-economic position in cross-sectional postal survey data in an older population: results from the North Staffordshire Osteoarthritis Project (NorStOP)

Figure 1

Bar chart of self-reported age left school (≤14 vs ≥15 years) by year of birth (n = 7713). Self-reported age left school data from the NorStOP baseline survey was stratified into two groups: left school at ≤14 years old, and left school at ≥15 years old. *The 1944 Education Act changed the legal school leaving age in England and Wales from 14 to 15, affecting those born from 1st April 1933 onwards

Back to article page