Table 1

Characteristics of included studies

Study	n	Participants	Interventions	Procedures
*Abstract only.
DET, dilutional exchange transfusion; Ht, haematocrit; n, number of patients participating.
Tapia¹²*	29	Polycythaemic newborns	Plasma v 5% albumin vnormal saline	Unknown route and desired Ht
Deorari¹³	30	Venous Ht >65% with symptoms after	Plasma v normal saline	22 umbilical, 8 peripheral,
		screening high risk newborns		desired Ht 55%
Roithmaier¹⁰	20	Venous Ht >65% with symptoms after	Plasma v Ringer solution	20 umbilical, desired Ht 55%
		screening cord blood
Wong¹¹	103	Venous Ht ⩾65% with symptoms or	5% albumin v normal saline	16 umbilical, 87 peripheral,
		venous Ht ⩾70%		desired Ht 55%
Krishnan¹⁴	27	Venous Ht >65% with symptoms or	Plasma v normal saline	27 peripheral, desired Ht 55%,
		venous Ht >70% after screening all newborns		capillary post DET Ht
Jan¹⁵	26	Venous Ht ⩾65% with symptoms after	Plasma v normal saline	Umbilical and peripheral,
		screening all newborns		desired Ht 55%