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Diastolic blood pre...
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Merlo, JuanLund University,Lunds universitet,Socialepidemiologi,Forskargrupper vid Lunds universitet,Social Epidemiology,Lund University Research Groups
(author)
Diastolic blood pressure and area of residence: multilevel versus ecological analysis of social inequity
- Article/chapterEnglish2001
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BMJ,2001
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LIBRIS-ID:oai:lup.lub.lu.se:6baa0332-e808-4c5d-a086-6fb35f2e70ad
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https://lup.lub.lu.se/record/131637URI
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https://doi.org/10.1136/jech.55.11.791DOI
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
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STUDY OBJECTIVES---To study geographical differences in diastolic blood pressure and the influence of the social environment (census percentage of people with low educational achievement) on individual diastolic blood pressure level, after controlling for individual age and educational achievement. To compare the results of multilevel and ecological analyses. DESIGN---Cross sectional analysis performed by multilevel linear regression modelling, with women at the first level and urban areas at the second level, and by single level ecological regression using areas as the unit of analysis. SETTING---Malmö, Sweden (population 250 000). PARTICIPANTS---15 569 women aged 45 to 73, residing in 17 urban areas, who took part in the Malmö Diet and Cancer Study (1991-1996). MAIN RESULTS---In the "fixed effects" multilevel analysis, low educational achievement at both individual (beta =1.093, SE=0.167) and area levels (beta =2.966, SE=1.250) were independently associated with blood pressure, although in the "random effects" multilevel analysis almost none of the total variability in blood pressure across persons was attributable to areas (intraclass correlation=0.3%). The ecological analysis also found an association between the area educational variable and mean diastolic blood pressure (beta =4.058, SE=1.345). CONCLUSIONS---The small intraclass correlation found indicated very marginal geographical differences and almost no influence of the urban area on individual blood pressure. However, these slight differences were enough to detect an effect of the social environment on blood pressure. The ecological study overestimated the associations found in the "fixed" effects multilevel analysis, and neither distinguished individual from area levels nor provided information on the intraclass correlation. Ecological analyses are inadequate to evaluate geographical differences in health.
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Östergren, Per-OlofLund University,Lunds universitet,Socialmedicin och global hälsa,Forskargrupper vid Lunds universitet,Social Medicine and Global Health,Lund University Research Groups(Swepub:lu)smi-pos
(author)
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Hagberg, OskarLund University,Lunds universitet,Matematisk statistik,Matematikcentrum,Institutioner vid LTH,Lunds Tekniska Högskola,Mathematical Statistics,Centre for Mathematical Sciences,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)mats-oha
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Lindström, MartinLund University,Lunds universitet,Socialepidemiologi,Forskargrupper vid Lunds universitet,Social Epidemiology,Lund University Research Groups(Swepub:lu)ekh-ml0
(author)
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Lindgren, AnnaLund University,Lunds universitet,Matematisk statistik,Matematikcentrum,Institutioner vid LTH,Lunds Tekniska Högskola,Mathematical Statistics,Centre for Mathematical Sciences,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)mats-ali
(author)
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Melander, ArneLund University,Lunds universitet,Institutionen för kliniska vetenskaper, Malmö,Medicinska fakulteten,Department of Clinical Sciences, Malmö,Faculty of Medicine(Swepub:lu)smi-ame
(author)
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Råstam, LennartLund University,Lunds universitet,Institutionen för kliniska vetenskaper, Malmö,Medicinska fakulteten,Department of Clinical Sciences, Malmö,Faculty of Medicine(Swepub:lu)smi-lra
(author)
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Berglund, GöranLund University,Lunds universitet,Internmedicin - epidemiologi,Forskargrupper vid Lunds universitet,Internal Medicine - Epidemiology,Lund University Research Groups(Swepub:lu)medf-gbe
(author)
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SocialepidemiologiForskargrupper vid Lunds universitet
(creator_code:org_t)
Related titles
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In:Journal of Epidemiology and Community Health: BMJ55:11, s. 791-7981470-27380143-005X
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