Table 2.

Participant level characteristics and going-to-sleep position

Characteristics	Owusu et al. [31]	Lakshmi et al. [32]
Total participants	220	Case (participants who had a stillbirth) n = 100 Control (participants who had a live birth) n = 200 Total = 300
Nationality	Ghanaian	Indian
Age—mean (SD)	29 (5.7) years	Not reported
Age range	Not reported	18–40 years
Parity—n (%) Nulliparous 1–2 3–4  ≥ 5	71 (32.3) 113 (51.4) 31 (14.1) 5 (2.3)	Not reported
Sleep position – n (%) Supine Non-supine	21 (9.7) 195 (90.3)	Not reported Not reported
Stillbirth	9 (4.1)	100 (percentage could not be extracted due to study design)*

Data are number (percentage) or mean (standard deviation)

*Cases were identified as women who had a stillbirth, therefore the prevalence of stillbirth amongst participants could not be extracted