TY - JOUR

T1 - Socioeconomic inequalities in stillbirth rates in Europe

T2 - Measuring the gap using routine data from the Euro-Peristat Project

AU - Zeitlin, Jennifer

AU - Mortensen, Laust

AU - Prunet, Caroline

AU - Macfarlane, Alison

AU - Hindori-Mohangoo, Ashna D.

AU - Gissler, Mika

AU - Szamotulska, Katarzyna

AU - Pal, Karin

AU - Bolumar, Francisco

AU - Nybo Andersen, Anne-Marie

AU - Ólafsdóttir, Helga Sól

AU - Zhang, Wei-Hong

AU - Blondel, Béatrice

AU - Alexander, Sophie

AU - Euro-Peristat Scientific Committee

PY - 2016/1/19

Y1 - 2016/1/19

N2 - Background: Previous studies have shown that socioeconomic position is inversely associated with stillbirth risk, but the impact on national rates in Europe is not known. We aimed to assess the magnitude of social inequalities in stillbirth rates in European countries using indicators generated from routine monitoring systems. Methods: Aggregated data on the number of stillbirths and live births for the year 2010 were collected for three socioeconomic indicators (mothers' educational level, mothers' and fathers' occupational group) from 29 European countries participating in the Euro-Peristat project. Educational categories were coded using the International Standard Classification of Education (ISCED) and analysed as: primary/lower secondary, upper secondary and postsecondary. Parents' occupations were grouped using International Standard Classification of Occupations (ISCO-08) major groups and then coded into 4 categories: No occupation or student, Skilled/ unskilled workers, Technicians/clerical/service occupations and Managers/professionals. We calculated risk ratios (RR) for stillbirth by each occupational group as well as the percentage population attributable risks using the most advantaged category as the reference (post-secondary education and professional/managerial occupations). Results: Data on stillbirth rates by mothers' education were available in 19 countries and by mothers' and fathers' occupations in 13 countries. In countries with these data, the median RR of stillbirth for women with primary and lower secondary education compared to women with postsecondary education was 1.9 (interquartile range (IQR): 1.5 to 2.4) and 1.4 (IQR: 1.2 to 1.6), respectively. For mothers' occupations, the median RR comparing outcomes among manual workers with managers and professionals was 1.6 (IQR: 1.0-2.1) whereas for fathers' occupations, the median RR was 1.4 (IQR: 1.2-1.8). When applied to the entire set of countries with data about mothers' education, 1606 out of 6337 stillbirths (25%) would not have occurred if stillbirth rates for all women were the same as for women with post-secondary education in their country. Conclusions: Data on stillbirths and socioeconomic status from routine systems showed widespread and consistent socioeconomic inequalities in stillbirth rates in Europe. Further research is needed to better understand differences between countries in the magnitude of the socioeconomic gradient.

AB - Background: Previous studies have shown that socioeconomic position is inversely associated with stillbirth risk, but the impact on national rates in Europe is not known. We aimed to assess the magnitude of social inequalities in stillbirth rates in European countries using indicators generated from routine monitoring systems. Methods: Aggregated data on the number of stillbirths and live births for the year 2010 were collected for three socioeconomic indicators (mothers' educational level, mothers' and fathers' occupational group) from 29 European countries participating in the Euro-Peristat project. Educational categories were coded using the International Standard Classification of Education (ISCED) and analysed as: primary/lower secondary, upper secondary and postsecondary. Parents' occupations were grouped using International Standard Classification of Occupations (ISCO-08) major groups and then coded into 4 categories: No occupation or student, Skilled/ unskilled workers, Technicians/clerical/service occupations and Managers/professionals. We calculated risk ratios (RR) for stillbirth by each occupational group as well as the percentage population attributable risks using the most advantaged category as the reference (post-secondary education and professional/managerial occupations). Results: Data on stillbirth rates by mothers' education were available in 19 countries and by mothers' and fathers' occupations in 13 countries. In countries with these data, the median RR of stillbirth for women with primary and lower secondary education compared to women with postsecondary education was 1.9 (interquartile range (IQR): 1.5 to 2.4) and 1.4 (IQR: 1.2 to 1.6), respectively. For mothers' occupations, the median RR comparing outcomes among manual workers with managers and professionals was 1.6 (IQR: 1.0-2.1) whereas for fathers' occupations, the median RR was 1.4 (IQR: 1.2-1.8). When applied to the entire set of countries with data about mothers' education, 1606 out of 6337 stillbirths (25%) would not have occurred if stillbirth rates for all women were the same as for women with post-secondary education in their country. Conclusions: Data on stillbirths and socioeconomic status from routine systems showed widespread and consistent socioeconomic inequalities in stillbirth rates in Europe. Further research is needed to better understand differences between countries in the magnitude of the socioeconomic gradient.

KW - Europe

KW - Health inequalities

KW - Mortality

KW - Pregnancy

KW - Socioeconomic factors

KW - Stillbirth

UR - http://www.scopus.com/inward/record.url?scp=84955269894&partnerID=8YFLogxK

U2 - 10.1186/s12884-016-0804-4

DO - 10.1186/s12884-016-0804-4

M3 - Journal article

C2 - 26809989

AN - SCOPUS:84955269894

VL - 16

SP - 1

EP - 13

JO - B M C Pregnancy and Childbirth

JF - B M C Pregnancy and Childbirth

SN - 1471-2393

M1 - 15

ER -