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Table 2 Descriptive statistics

From: The long-term health effects of attending a selective school: a natural experiment

 Aberdeen Children of the 1950s (total)Base sample (total)Study sample (total)Study sample (attended non-selective secondary)Study sample (attended selective secondary)
 CasesMeanCasesMeanCasesMeanCasesMeanCasesMean
Boy (%)12,14852%808752%503949%384549%119449%
IQ aged 911,3841117998110499811238161061182129
Father non-manual labour (%)12,14821%808717%503917%384513%119432%
11+ exam score96004988087495503950238454761194584
General health (0–3 scale)71432.048062.047342.035421.911922.2
Mental health (0–15 scale)71118.547868.547168.535298.511878.7
Life limited by health (%)701217%472017%465117%347018%118113%
Linked to NHS records (%)10,63488%718189%468793%361494%107390%
Chronic diagnoses 1997–2001 (per 100 people)10,6341371811346871136141310738
Chronic diagnoses 2011–2015 (per 100 people)10,63439718141468740361444107326
Died before age 60 (%)12,1488%80878%50394%38455%11943%
Attended selective secondary (%)nananana503924%nananana