Table 1.

Characteristics of participants assessed at 10 years by trial allocation

	n	DRIFT		n	Standard
		Mean (SD) or n (%)			Mean (SD) or n (%)
Total number of participants	28			24
Centre
Bristol, UK	28		23 (82%)	24		19 (79%)
Katowice, Poland			3 (11%)			4 (17%)
Glasgow, UK			1 (4%)			1 (4%)
Bergen, Norway			1 (4%)			0 (0%)
Sociodemographics at birth
Age at randomisation (days)	28	18.68 (5.00)	24	19.17 (4.53)
Sex: male*	28	22 (79%)	24	15 (63%)
Clinical characteristics at birth
Birth weight (g)*	28	1101.89 (335.54)	24	1322.46 (534.68)
Gestation (weeks)	28	27.64 (2.56)	24	28.50 (3.05)
Grade of IVH: 4	28	14 (50%)	24	11 (46%)
Maternal age at birth	14	28.50 (6.99)	12	28.17 (6.32)
Median IMD 2010, postcode at birth† (IQR)	18	26.7 (8.2–36.5)	18	27.6 (11.2–45.8)
Measures at 2 years
Experienced second IVH*	28	8 (29%)	24	3 (13%)
VP shunt	28	11 (39%)	24	8 (33%)
Ventricular access device*	28	13 (46%)	24	19 (79%)
Measures at 10 years
Age at 10-year assessment (years)	28	10.56 (1.07)	24		10.76 (1.06)
Weight (kg)	28	35.41 (10.05)	23	34.73 (10.51)
Height (cm)	28	139.09 (12.22)	23	142.26 (11.34)
Head circumference (cm)	28	52.88 (2.53)	23	52.00 (3.43)
Maternal education*
Left school at 16	28		10 (36%)	23		11 (48%)
Further education			6 (21%)			5 (22%)
University degree			12 (43%)			7 (30%)

*Difference of 10%/0.5 SD or higher between the groups.

†English Index of Multiple Deprivation (IMD) 2010 scores, UK Data Service Census Support (http://geoconvert.mimas.ac.uk/). Higher scores indicate higher levels of deprivation. IMD based on the children’s home postcode at birth for those residing in England only.

DRIFT, drainage, irrigation and fibrinolytic therapy; IVH, intraventricular haemorrhage; VP, ventriculoperitoneal.