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Advisor(s)
Abstract(s)
Background: Socioeconomic factors may influence changes in hip fracture (HF) incidence over time. We analysed HF temporal trends during the Bone and Joint Decade in Portugal (BJD-Portugal), 2000–2010, by regional socioeconomic status (SES), sex and age.
Methods: We selected registers of patients aged 50+ years with HF (International Classification of Diseases, V.9—Clinical Modification, ICD9-CM) caused by traumas of low/moderate energy, from the National Hospital Discharge Database. Annual time series of age-specific incidence rates were calculated by sex and regional SES (deprived, medium, affluent). Generalised additive models were fitted to identify shape/turning points in temporal trends.
Results: We selected 96 905 HF (77.3% in women). Women were older than men at admission (81.2±8.5 vs 78.2±10.1 years-old, p<0.001). For women 65–79 years, a continuously decreasing trend (1.7%/year) only in affluent and increasing trends (3.3–3.4%/year) after 2006/2007 in medium and deprived was observed. For men, trends were stable or increased in almost all age/SES groups (only two decreasing periods). For the oldest women, all SES present similar trends: turning points around 2003 (initiating decreasing periods: 1.8–2.9%/year) and around 2007 (initiating increasing periods: 3.7–3.3%/year).
Conclusions: There were SES-sex-age inequalities in temporal trends during BJD-Portugal: marked SES inequalities among women aged 65–79 years (a persistent, decreasing trend only in the affluent) vanished among the oldest women; the same was not observed in men, for them, there were almost no declining periods; women aged ≥80 years, presented increasing trends around 2007, as in most deprived/age/sex groups. Despite some successful periods of decreasing trends, incidence rates did not improve overall in almost all age groups and both sexes.
Description
Keywords
Hip fractures Incidence rates Regional socioeconomic status Temporal trends Time series analysis Bone and Joint Decade
Citation
Oliveira, C. M., Alves, S. M., & Pina, M. F. (2016). Marked socioeconomic inequalities in hip fracture incidence rates during the Bone and Joint Decade (2000–2010) in Portugal: Age and sex temporal trends in a population based study. J Epidemiol Community Health, 70(8), 755–763. https://doi.org/10.1136/jech-2015-206508
Publisher
BMJ Publishing Group