Inclusion criteria | Exclusion criteria | ||
---|---|---|---|
CASES | CONTROLS | CASES | CONTROLS |
Non pregnant women | Non pregnant women | Currently pregnant or lactating | Currently pregnant or lactating |
Three consecutive 1st trimester miscarriage or two 2nd trimester losses | Uncomplicated obstetric history | Cause for RPL identified. | Any underlying medical condition that may cause RPL |
No live births after miscarriages | One or more successful pregnancies | Use of hormonal contraception in preceding 6 months | Use of hormonal contraception in preceding 6 months |
No diagnosis for RPL established | N/A | Not living in Cape Town for more than 2 years | Not living in Cape Town for more than 2 years |
No hormonal contraception in preceding 6 months | Not on hormonal contraception |