RT Journal Article T1 Changes in individual and contextual socioeconomic level influence on reproductive behavior in Spanish women in the MCCSpain study A1 Gómez Acebo, Inés A1 Dierssen Sotos, Trinidad A1 Palazuelos, Camilo A1 Alguacil Ojeda, Juan AB Background: The association between socioeconomic level and reproductive factors has been widely studied. Forexample, it is well known that women with lower socioeconomic status (SES) tend to have more children, the ageat first-born being earlier. However, less is known about to what extent the great socioeconomic changes occurredin a country (Spain) could modify women reproductive factors. The main purpose of this article is to analyze theinfluence of individual and contextual socioeconomic levels on reproductive factors in Spanish women, and toexplore whether this influence has changed over the last decades.Methods: We performed a cross-sectional design using data from 2038 women recruited as population-basedcontrols in an MCC-Spain case-control study.Results: Higher parent’s economic level, education level, occupational level and lower urban vulnerability wereassociated with higher age at first delivery and lower number of pregnancies. These associations werestronger for women born after 1950: women with unfinished primary education had their first delivery 6years before women with high education if they were born after 1950 (23.4 vs. 29.8 years) but only 3 yearsbefore if they were born before 1950 (25.7 vs. 28.0 years). For women born after 1950, the number ofpregnancies dropped from 2.1 (unfinished primary school) to 1.7 (high education), whereas it remainedalmost unchanged in women born before 1950.Conclusions: Reproductive behavior was associated with both individual and area-level socio-economicindicators. Such association was stronger for women born after 1950 regarding age at first delivery andnumber of pregnancies and for women born before 1950 regarding consumption of hormonal contraceptivesor postmenopausal therapy. PB BMC SN 1472-6874 YR 2020 FD 2020-03 LK http://hdl.handle.net/10272/17994 UL http://hdl.handle.net/10272/17994 LA eng NO Gómez Acebo, I., Dierssen Sotos, T., Palazuelos, C. ... Alguacil Ojeda, J. (2020). Changes in individual and contextual socio-economic level influence on reproductive behavior in Spanish women in the MCC-Spain study. BMC Women’s Health, 20(1). DOI: https://doi.org/10.1186/s12905-020-00936-4 NO This work was supported by the ‘Acción Transversal del Cancer’, approved bythe Spanish Ministry Council on the 11th October 2007, by the Instituto deSalud Carlos III, co-founded by FEDER funds –‘a way to build Europe’ (grantsPI08/1770, PI08/0533, PI08/1359, PI09/00773, PI09/01286, PI09/01903, PI09/02078, PI09/01662, PI11/01403, PI11/01889, PI11/00226, PI11/01810, PI11/02213, PI12/00488, PI12/00265, PI12/01270, PI12/00715, PI12/00150, PI14/01219, PI14/00613, and PI15/00069). Support was also provided by the Fundación Marqués de Valdecilla (grant API 10/09); the Junta de Castilla y León(grant LE22A10–2); the Consejería de Salud of the Junta de Andalucía (2009-S0143); the Conselleria de Sanitat of the Generalitat Valenciana (grant AP061/10); the Recercaixa (grant 2010ACUP 00310); the Regional Governmentof the Basque Country; the Consejería de Sanidad de la Región de Murcia;European Commission grants FOOD-CT-2006-036224-HIWATE; the SpanishAssociation Against Cancer (AECC) Scientific Foundation; the Catalan Government DURSI (grant 2014SGR647); the Fundación Caja de Ahorros de Asturias;the University of Oviedo; Societat Catalana de Digestologia; and COST actionBM1206 Eucolongene. None of the funders played any role in conducting re DS Repositorio Institucional de la Universidad de Huelva RD 30 may 2026