Table 1.

Demographic data of study participants.

Demographics	Preconception	Pregnancy	Postbirth
N	13	16	15
Age range (years)	21–39	27–39	25–40
Socioeconomic status (n)
Low	1	4	4
Middle	5	4	4
High	7	8	7
Ethnicity (n)
Chinese	11	11	11
Indian	0	1	3
Malay	2	1	1
Others	0	3	0
Number of children (n)
0	7	10	0
1	5	4	7
2 or more	1	2	8
Education (n)
15 years or less	7	10	5
More than 15 years	6	6	10