Table 2.

Summary of population demographics.

Total participants	15
Total recording sessions	43
Gestational agea,b (weeks)	$28.9(\pm 3.2)$
Weighta,b (grams)	$1172.2(\pm 284.3)$
Gender (number of participants)
Male	8
Female	7
Ethnicity (number of participants)
White British	10
Asian or Asian British—Pakistani	1
Black British or black African	1
Mixed—White and Asian	1
Mixed—White and black Caribbean	1
Mixed—Any other mixed	1

^aValue shown in mean ($\pm$SD).

^bOn the first day of recording.