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Table 6 Duration of recall of age left school and start of job done for most of working life

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)

 

n

Number of years (range)

Mean

Standard deviation

Age left school

 Quantitative survey

7713

32–85

51.3

10.8

 Qualitative interview

18

40–73

53.1

9.1

Start of job done for most of working life

    

 Quantitative survey

2558

6–83

45.4

13.3