Table 1.

Background characteristics at time of birth according to the five estimated trajectory groups.

	Low adversity (693,584)	Early life material deprivation (257,340)	Persistent material deprivation (171,321)	Loss or threat of loss (117,675)	High adversity (41,414)
Sex, %
Men	51	51	51	51	54
Women	49	49	49	49	46
Parental origin, %
Non-European	≤1	4	8	3	2
European	99	96	92	97	98
Missing	≤1	≤1	≤1	≤1	≤1
Maternal age, %
<20 years	≤1	4	7	3	11
20–30 years	65	73	71	63	68
>30 years	34	24	22	33	22
Missing	≤1	≤1	≤1	≤1	≤1
Paternal age, %
<20 years	≤1	≤1	≤1	≤1	2
20–30 years	46	55	54	45	50
>30 years	52	40	40	51	37
Missing	2	4	4	3	10
Preterm birth, %
No	92	92	91	90	88
Yes	5	5	5	7	9
Missing	3	3	4	3	4
Small for gestational age, %
No	85	83	80	82	74
Yes	11	14	16	15	22
Missing	3	3	4	3	4
Parental history of cancer, %
No	80	82	79	66	81
Yes	20	18	21	34	19
Parental education, %
<10 years	8	21	32	21	54
10–12 years	48	55	49	50	36
≥12 years	44	23	18	29	10
Missing	≤1	≤1	≤1	≤1	≤1

Parental origin (European descent [Europe, North America, Australia and New Zealand], non-European descent if both parents are of non-European descent), maternal age at time of birth (<20 years, 20–30 years, >30 years), being born preterm (before completion of week 37 of gestation), being born small for gestational age (defined as birthweight below the 10th percentile of sex-specific standard reference curves for intrauterine growth) and parental history of cancer (mother or father has a cancer diagnosis), parental education (highest attained education level by either the mother or the father).