{"id":8816,"date":"2025-09-16T11:46:33","date_gmt":"2025-09-16T09:46:33","guid":{"rendered":"https:\/\/fhu-premimpact.org\/?post_type=publication&#038;p=8816"},"modified":"2025-10-02T11:49:27","modified_gmt":"2025-10-02T09:49:27","slug":"evaluation-of-area-based-socioeconomic-inequalities-and-neonatal-mortality-rates-in-france-national-population-based-study","status":"publish","type":"publication","link":"https:\/\/fhu-premimpact.org\/en\/publications\/evaluation-of-area-based-socioeconomic-inequalities-and-neonatal-mortality-rates-in-france-national-population-based-study\/","title":{"rendered":"Evaluation of area based socioeconomic inequalities and neonatal mortality rates in France: national population based study"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Abstract<\/h2>\n\n\n\n<p><strong>Objective:<\/strong> To investigate the magnitude and evolution of inequalities in neonatal mortality rates by using area based socioeconomic indices in France.<\/p>\n\n\n\n<p><strong>Design:<\/strong> National population based study.<\/p>\n\n\n\n<p><strong>Setting:<\/strong> For 2015-20, data from the French National Health Data System (Syst\u00e8me National des Donn\u00e9es de Sant\u00e9, SNDS). For 2001-08, neonatal death certificates and aggregate vital statistics data by municipality of residence.<\/p>\n\n\n\n<p><strong>Participants:<\/strong> Live births with a gestational age \u226522 completed weeks to a mother residing in metropolitan France, 2015-20 (4 293 403 live births and 10 869 neonatal deaths), compared with a 2001-08 study (6 202 918 live births and 14 851 neonatal deaths).<\/p>\n\n\n\n<p><strong>Main outcome measures:<\/strong> Differences in neonatal mortality rate (death before day 28 of life) according to the socioeconomic characteristics of the mother&#8217;s municipality of residence. Comparison with data from a 2001-08 study to assess changes in socioeconomic inequalities and their contribution to the increase in neonatal mortality rate.<\/p>\n\n\n\n<p><strong>Results:<\/strong> The neonatal mortality rate was 2.53 per 1000 live births in 2015-20. Five indicators, previously associated with perinatal mortality, were combined into a perinatal French deprivation index (P-FDep) for the main analysis. P-FDep was categorised into five equal groups (deprivation groups 1-5) for comparison with other research and into 10 equal groups (deprivation groups 1-10) for more granular analyses, with group 1 being the least and group 5 (or group 10) the most deprived group. The rate in the most deprived compared with the least deprived group for P-FDep was 1.71 (95% confidence interval 1.60 to 1.83) times higher, based on the analysis of deprivation groups 1-5. A mortality gradient existed across the groups, translating into 2496 excess deaths (23.3%) when the rate in the least deprived group was applied to all areas. The gradient was more marked when deprivation groups 1-10 were used (relative risk 1.88, 95% CI 1.71 to 2.07 for the highest to the lowest deprived group). Compared with 2001-08 (neonatal mortality rate 2.39 per 1000), the rate remained constant in the least deprived areas, but worsened in the most deprived areas (+10.1% and +11.7% for groups 4 and 5, respectively), increasing the relative risks between the highest and lowest groups, which were 1.54 (95% CI 1.46 to 1.62) for deprivation groups 1-5 and 1.67 (1.55 to 1.79) for deprivation groups 1-10, in 2001-08.<\/p>\n\n\n\n<p><strong>Conclusions:<\/strong> In this study, the socioeconomic level of the mother&#8217;s place of residence was strongly associated with the neonatal mortality rate. The data showed that inequalities have widened, contributing to the increase in the neonatal mortality rate.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>BMJ Med. 2025 Sep 16;4(1):e000954.<\/p>\n","protected":false},"featured_media":0,"template":"","class_list":["post-8816","publication","type-publication","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Evaluation of area based socioeconomic inequalities and neonatal mortality rates in France: national population based study - FHU Prem&#039;IMPACT<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fhu-premimpact.org\/en\/publications\/evaluation-of-area-based-socioeconomic-inequalities-and-neonatal-mortality-rates-in-france-national-population-based-study\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Evaluation of area based socioeconomic inequalities and neonatal mortality rates in France: national population based study - 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