Table 1 Summary of the 11 cohorts included in the individual participant data meta-analysis.

										Adulthood socioeconomic outcomes assessed
Cohort	Country	Birth year	Age	VP (n)	TB (n)	TB recruited	VP Male (%)	TB Male (%)	MEL	Educational attainment	Economically active	Employment status	Work status	Working hours	Social benefits	Independent living
1. AYLS	Finland	1985–86	26	32	351	Birth	56.3	45.0	2.29	×	×	×	×	×		×
2. BLS	Germany	1985–86	26	260	229	Birth	53.1	46.7	1.76	×	×	×	×	×	×	×
3. ESTER	Finland	1985–89	23	75	347	Birth	44.0	47.4	2.28	×	×	×	×	×		×
4. HESVA	Finland	1978–85	22	187	190	Birth	43.9	40.0	2.08	×	×	×				×
5. NTNU LBW Life	Norway	1986–88	26	50	81	Birth	50.0	46.9	2.40	×	×	×			×	×
6. POPS^a	Netherlands	1983	28	317	NA	NA	38.5	NA	1.83	×	×	×	×	×	×	×
7. EPICure	UK + Ireland	1995	19	126	62	Childhood	46.0	38.7	1.94	×	×	×	×	×	×	×
8. NZVLBW	New Zealand	1986	28	250	99	Adulthood	42.8	36.0	2.10	×	×		×	×		×
9. VICS	Australia	1991–92	18	199	150	Adulthood	45.7	42.0	2.00	×	×	×			×	×
10. RWH	Australia	1977–82	26	95	22	Birth	44.2	59.1	1.46	×	×	×			×
11. UCLH	UK	1979–84	30	104	89	Adulthood	60.6	47.2	2.41	×	×	×

VP = very preterm/very low birth weight (VPT/VLBW); TB = Term-born controls. MEL = Maternal educational level, measured at birth or childhood, harmonised according to the International Standard Classification of Education (1 = Lower secondary or less; 2 = Upper secondary or short post-secondary; 3 = University education or equivalent). AYLS = Arvo Ylppo Longitudinal Study; BLS = Bavarian Longitudinal Study; ESTER = Early Life Programming of Adult Health and Disease Study; HESVA = Helsinki Study of Very Low Birth Weight Adults; NTNU LBW Life = Norwegian University of Science and Technology Low Birth Weight in a Lifetime Perspective study.
^aPOPS = Project on Premature and Small for Gestational Age Infants (only included VPT/VLBW individuals); EPICure = Extremely Preterm Birth in the UK and Ireland; NZVLBW = New Zealand Very Low Birthweight; VICS = Victorian Infant Collaborative Study; RWH = Royal Women’s Hospital; UCLH = University College London Hospitals.

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