Table 1 Characteristics of the subsample* at birth, during childhood and in adulthood

Cancer

No

96.7 (2743)

89.4 (2951)

Yes

3.3 (93)

10.6 (351)

ACE

0

74.4 (2110)

75.2 (2483)

1

20.0 (566)

19.4 (641)

2 or more

5.6 (160)

5.4 (178)

Mother’s education

Stayed at school after min age

27.3 (773)

26.5 (875)

Left school at or before min age

69.5 (1970)

70.0 (2310)

Missing

3.3 (93)

3.5 (117)

Parental social class

Non-manual

30.9 (875)

27.2 (931)

Manual

65.7 (1862)

68.0 (2246)

Missing

3.5 (99)

3.8 (125)

Overcrowded household

<1.5 people per room

85.5 (2424)

83.4 (2775)

≥1.5 people per room

9.1 (257)

11.3 (374)

Missing

5.5 (155)

5.2 (173)

Parity

Primiparous

36.5 (1034)

37.6 (1242)

One

32.2 (913)

28.6 (945)

Two or more

28.6 (812)

30.7 (1013)

Missing

2.7 (77)

3.1 (102)

Fœtal distress

No

87.4 (2478)

89.1 (2943)

Yes

9.9 (281)

7.8 (256)

Missing

2.7 (77)

3.1 (103)

Problems during pregnancy

No

72.7 (2063)

70.7 (2333)

Yes

24.5 (695)

26.2 (865)

Missing

2.8 (78)

3.2 (104)

Smoking in pregnancy

No

66.6 (1888)

65.6 (2165)

Sometimes

5.4 (152)

5.0 (164)

Moderately

13.8 (390)

14.3 (472)

Heavily

10.4 (296)

11.0 (364)

Missing

3.9 (110)

4.1 (137)

Breastfeeding

Yes for more than 1 month

44.6 (1264)

43.4 (1432)

Yes for up to one month

22.3 (631)

23.1 (763)

No

27.4 (776)

27.3 (901)

Missing

5.8 (165)

6.2 (206)

Childhood pathologies

No

65.0 (1843)

69.4 (2291)

Yes

22.6 (640)

18.5 (612)

Missing

12.5 (353)

12.1 (399)

Education level 23 y

A levels or higher

25.6 (726)

24.3 (801)

O levels

39.4 (1117)

45.1 (1489)

No qualifications

34.2 ((970)

29.1 (961)

missing

0.8 (23)

1.5 (51)

Social class 23 y

Non-manual active

38.6 (1094)

54.3 (1792)

Manual active

45.4 (1287)

12.8 (422)

Inactive

12.9 (365)

31.1 (1027)

Missing

3.17 (90)

1.9 (61)

Alcohol consumption 23 y

Normal

70.1 (1988)

56.4 (1862)

Abstinence

4.2 (118)

7.4 (244)

Heavy

17.6 (498)

8.9 (293)

missing

8.2 (232)

27.4 (903)

Smoking 23 y

Never

29.3 (832)

33.4 (1102)

Past

33.9 (960)

27.9 (921)

Current

36.1 (1023)

37.3 (1230)

missing

0.7 (21)

1.5 (49)

Psychological malaise 23 y

No

96.1 (2725)

89.5 (2956)

Yes

3.0 (85)

8.9 (295)

Missing

0.9 (26)

1.5 (51)

Body mass index 23 y

Normal

75.3 (2136)

76.5 (2526)

(Kg/m² WHO cut-offs)

Underweight

2.3 (64)

7.0 (231)

Overweight

16.8 (477)

11.3 (374)

Obese

3.9 (110)

2.6 (86)

missing

1.7 (49)

2.6 (85)

Mean (s.e.)

Mean (s.e.)

Gestational age in days

(missing n = 2986 )

279.9 (0.2)

280.4 (0.2)

Birthweight Kg

(missing n = 1775)

3.4 (0.0)

3.2 (0.1)

Mother’s age at birth

(missing n = 1156)

27.5 (0.1)

27.6 (0.1)