Table 1

Distribution of the study population and the prevalence (%) of secondary and tertiary education at age 27 by background factors

Full Sample (n = 352,899)Sibling Sample (n = 163,430)
Education at Age 27 at Least (%)Education at Age 27 at Least (%)
Covariatea%dSecondaryTertiary%dSecondaryTertiary
Somatic Condition 
 No 91.9 90.4 35.0 92.2 90.9 35.3 
 Yes 8.1 87.9 31.2 7.8 88.6 32.0 
Frequent Infections 
 No 90.9 90.3 34.8 91.8 90.8 35.1 
 Yes 9.1 89.0 33.6 8.2 89.6 34.5 
Mental Disorder 
 No 94.3 91.3 35.7 94.8 91.7 36.1 
 Yes 5.7 72.1 17.1 5.2 73.0 17.3 
Sex 
 Male 51.1 88.1 26.8 51.1 88.6 27.1 
 Female 48.9 92.3 42.9 48.9 92.8 43.4 
Birth Year 
 1986 16.2 89.1 35.0 15.3 90.1 36.9 
 1987 15.9 90.0 35.4 15.3 90.8 36.8 
 1988 16.8 89.8 34.9 18.0 90.3 35.5 
 1989 16.8 90.3 34.6 18.4 90.7 35.0 
 1990 17.2 90.7 34.0 16.7 90.8 33.5 
 1991 17.1 91.1 34.1 16.3 91.4 33.0 
Maternal Age (continuous) 29.0   28.4   
(5.2)   (4.7)   
Mother Tongue 
 Finnish 93.9 90.2 34.4 94.0 90.8 34.9 
 Swedish 4.8 93.5 44.0 4.7 93.9 43.9 
 Other 1.4 76.0 21.7 1.3 74.1 17.6 
Parental Education 
 Tertiary 50.4 94.6 46.9 52.6 94.8 47.0 
 Secondary 42.8 87.2 23.5 41.9 87.7 23.1 
 Basic 6.8 76.0 14.1 5.6 74.3 12.3 
Family Typeb 
 Two parents 82.3 91.8 37.0 85.0 92.1 37.1 
 Mother only 15.3 83.0 24.2 12.8 83.2 24.1 
 Father only 2.4 81.6 21.8 2.2 81.4 22.4 
Sibship Size (continuous)b 2.8   3.3   
(1.5)   (1.8)   
Urban-Rural Classificationb,c 
 Inner-urban 18.9 88.0 36.6 16.7 88.3 37.5 
 Outer-urban 29.5 90.0 36.1 28.5 90.5 37.0 
 Peri-urban 12.8 90.8 33.9 13.6 91.3 34.2 
 Local centers in rural areas 6.2 90.8 35.3 5.9 91.1 35.8 
 Rural areas close to urban 9.2 90.2 31.4 10.0 90.8 31.9 
 Rural heartland 15.0 91.7 34.1 16.0 92.2 34.4 
 Sparsely populated rural 8.4 91.2 30.4 9.3 91.7 30.5 
Total 100.0 90.2 34.7 100.0 90.7 35.1 
Full Sample (n = 352,899)Sibling Sample (n = 163,430)
Education at Age 27 at Least (%)Education at Age 27 at Least (%)
Covariatea%dSecondaryTertiary%dSecondaryTertiary
Somatic Condition 
 No 91.9 90.4 35.0 92.2 90.9 35.3 
 Yes 8.1 87.9 31.2 7.8 88.6 32.0 
Frequent Infections 
 No 90.9 90.3 34.8 91.8 90.8 35.1 
 Yes 9.1 89.0 33.6 8.2 89.6 34.5 
Mental Disorder 
 No 94.3 91.3 35.7 94.8 91.7 36.1 
 Yes 5.7 72.1 17.1 5.2 73.0 17.3 
Sex 
 Male 51.1 88.1 26.8 51.1 88.6 27.1 
 Female 48.9 92.3 42.9 48.9 92.8 43.4 
Birth Year 
 1986 16.2 89.1 35.0 15.3 90.1 36.9 
 1987 15.9 90.0 35.4 15.3 90.8 36.8 
 1988 16.8 89.8 34.9 18.0 90.3 35.5 
 1989 16.8 90.3 34.6 18.4 90.7 35.0 
 1990 17.2 90.7 34.0 16.7 90.8 33.5 
 1991 17.1 91.1 34.1 16.3 91.4 33.0 
Maternal Age (continuous) 29.0   28.4   
(5.2)   (4.7)   
Mother Tongue 
 Finnish 93.9 90.2 34.4 94.0 90.8 34.9 
 Swedish 4.8 93.5 44.0 4.7 93.9 43.9 
 Other 1.4 76.0 21.7 1.3 74.1 17.6 
Parental Education 
 Tertiary 50.4 94.6 46.9 52.6 94.8 47.0 
 Secondary 42.8 87.2 23.5 41.9 87.7 23.1 
 Basic 6.8 76.0 14.1 5.6 74.3 12.3 
Family Typeb 
 Two parents 82.3 91.8 37.0 85.0 92.1 37.1 
 Mother only 15.3 83.0 24.2 12.8 83.2 24.1 
 Father only 2.4 81.6 21.8 2.2 81.4 22.4 
Sibship Size (continuous)b 2.8   3.3   
(1.5)   (1.8)   
Urban-Rural Classificationb,c 
 Inner-urban 18.9 88.0 36.6 16.7 88.3 37.5 
 Outer-urban 29.5 90.0 36.1 28.5 90.5 37.0 
 Peri-urban 12.8 90.8 33.9 13.6 91.3 34.2 
 Local centers in rural areas 6.2 90.8 35.3 5.9 91.1 35.8 
 Rural areas close to urban 9.2 90.2 31.4 10.0 90.8 31.9 
 Rural heartland 15.0 91.7 34.1 16.0 92.2 34.4 
 Sparsely populated rural 8.4 91.2 30.4 9.3 91.7 30.5 
Total 100.0 90.2 34.7 100.0 90.7 35.1 

aRegion of residence (mode at ages 10–14) is not shown because of the large number of categories (n = 18).

bMode at ages 10–14.

cA nationwide geographical classification system by the Finnish Environmental Institute.

dThe column presents means and standard deviations (shown in parentheses) for continuous variables.

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