Table2  Distribution of underlying risk factors, pre-existing illnesses and social factors with absolute and relative incidences. A total of 83 participants were included in the analysis.

	Absolute incidence (n)	Relative incidence (%)
High risk pregnancy	83	100
Yes	31	37
No	52	63
Pre-existing illnesses	83	100
Yes	31	37
No	52	63
Family status	83	100
Married/living together	47	56
Married/living apart	4	5
Single	32	39
Registered partnership	0	0
Highest educational attainment	83	100
Lower secondary school	11	13
Secondary school certificate	6	7
Higher education entrance qualification	6	7
Technical college	3	4
Professional training	21	25
University	29	35
Doctorate (PhD)	5	6
Other	2	3