. Author manuscript; available in PMC: 2021 Jul 1.

Published in final edited form as: Eur J Epidemiol. 2020 Nov 21;36(1):129–142. doi: 10.1007/s10654-020-00697-2

Table 4. Baseline characteristics of participants in the S-PRESTO cohort.

Characteristics	N	N(%)
Age (year ± SD)	1032	30.8 ± 3.8 (range: 19-45)
Ethnicity ^*
Chinese		743 (72.0)
Malay		159 (15.4)
Indians		95 (9.2)
Mixed		35 (3.4)
Highest education level
Tertiary		635 (61.5)
Non-Tertiary		384 (37.2)
Unknown		13 (1.3)
Smoking status during preconception
Never smoke		904(87.6)
Smoker		45 (4.4)
Ex-smoker		62 (6.0)
Unknown		21 (2.0)
Height (cm, mean±SD)	1004	159.82 ± 5.6, (range: 142.75 - 176.50)
Pre-pregnancy weight (kg, mean±SD)	1005	60.84 ± 13.8, (range: 33.95 - 140.85)
Pre-pregnancy BMI (kg/m², mean ±SD)	1004	23.83 ± 5.3, (range: 15.14 - 50.11)

Information on ethnicity are obtained from identification documents for 7 participants.