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Table 1 Inclusion and exclusion criteria

From: Maternal hair selenium levels as a possible long-term nutritional indicator of recurrent pregnancy loss

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