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Geo-mapping of time trends in childhood caries risk - a method for assessment of preventive care

Strömberg, Ulf LU ; Holmen, Anders; Magnusson, Kerstin and Twetman, Svante (2012) In BMC Oral Health 12.
Abstract
Background: Dental caries is unevenly distributed within populations with a higher burden in low socio-economy groups. Several attempts have been made to allocate resources to those that need them the most; there is a need for convenient approaches to population-based monitoring of caries risk over time. The aim of this study was to develop the geo-map concept, addressing time trends in caries risk, and demonstrate the novel approach by analyzing epidemiological data from preschool residents in the region of Halland, Sweden. Methods: The study population consisted of 9,973 (2006) and 10,927 (2010) children between 3 to 6 years of age (similar to 77% of the eligible population) from whom caries data were obtained. Reported dmfs >0 for a... (More)
Background: Dental caries is unevenly distributed within populations with a higher burden in low socio-economy groups. Several attempts have been made to allocate resources to those that need them the most; there is a need for convenient approaches to population-based monitoring of caries risk over time. The aim of this study was to develop the geo-map concept, addressing time trends in caries risk, and demonstrate the novel approach by analyzing epidemiological data from preschool residents in the region of Halland, Sweden. Methods: The study population consisted of 9,973 (2006) and 10,927 (2010) children between 3 to 6 years of age (similar to 77% of the eligible population) from whom caries data were obtained. Reported dmfs >0 for a child was considered as the primary caries outcome. Each study individual was geo-coded with respect to his/her residence parish (66 parishes in the region). Smoothed caries risk geo-maps, along with corresponding statistical certainty geo-maps, were produced by using the free software Rapid Inquiry Facility and the ESRI (R) ArcGIS system. Parish-level socioeconomic data were available. Results: The overall proportion of caries-free (dmfs = 0) children improved from 84.0% in 2006 to 88.6% in 2010. The ratio of maximum and minimum (parish-level) smoothed relative risks (SmRRs) increased from 1.76/0.44 = 4.0 in 2006 to 2.37/0.33 = 7.2 in 2010, which indicated an increased geographical polarization of early childhood caries in the population. Eight parishes showed evidential, positional changes in caries risk between 2006 and 2010; their corresponding SmRRs and statistical certainty ranks changed markedly. No considerable parallel changes in parish-level socioeconomic characteristics were seen during the same time period. Conclusion: Geo-maps based on caries risk can be used to monitor changes in caries risk over time. Thus, geo-mapping offers a convenient tool for evaluating the effectiveness of tailored health promotion and preventive care in child populations. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Caries, Children, Prevention, Geo-mapping, Time trend
in
BMC Oral Health
volume
12
publisher
BioMed Central
external identifiers
  • wos:000313322000001
  • scopus:84862200185
ISSN
1472-6831
DOI
10.1186/1472-6831-12-9
language
English
LU publication?
yes
id
0dc226b3-a034-45b9-b977-ea227c956195 (old id 3504090)
date added to LUP
2013-03-01 07:51:08
date last changed
2017-10-22 04:05:03
@article{0dc226b3-a034-45b9-b977-ea227c956195,
  abstract     = {Background: Dental caries is unevenly distributed within populations with a higher burden in low socio-economy groups. Several attempts have been made to allocate resources to those that need them the most; there is a need for convenient approaches to population-based monitoring of caries risk over time. The aim of this study was to develop the geo-map concept, addressing time trends in caries risk, and demonstrate the novel approach by analyzing epidemiological data from preschool residents in the region of Halland, Sweden. Methods: The study population consisted of 9,973 (2006) and 10,927 (2010) children between 3 to 6 years of age (similar to 77% of the eligible population) from whom caries data were obtained. Reported dmfs >0 for a child was considered as the primary caries outcome. Each study individual was geo-coded with respect to his/her residence parish (66 parishes in the region). Smoothed caries risk geo-maps, along with corresponding statistical certainty geo-maps, were produced by using the free software Rapid Inquiry Facility and the ESRI (R) ArcGIS system. Parish-level socioeconomic data were available. Results: The overall proportion of caries-free (dmfs = 0) children improved from 84.0% in 2006 to 88.6% in 2010. The ratio of maximum and minimum (parish-level) smoothed relative risks (SmRRs) increased from 1.76/0.44 = 4.0 in 2006 to 2.37/0.33 = 7.2 in 2010, which indicated an increased geographical polarization of early childhood caries in the population. Eight parishes showed evidential, positional changes in caries risk between 2006 and 2010; their corresponding SmRRs and statistical certainty ranks changed markedly. No considerable parallel changes in parish-level socioeconomic characteristics were seen during the same time period. Conclusion: Geo-maps based on caries risk can be used to monitor changes in caries risk over time. Thus, geo-mapping offers a convenient tool for evaluating the effectiveness of tailored health promotion and preventive care in child populations.},
  articleno    = {9},
  author       = {Strömberg, Ulf and Holmen, Anders and Magnusson, Kerstin and Twetman, Svante},
  issn         = {1472-6831},
  keyword      = {Caries,Children,Prevention,Geo-mapping,Time trend},
  language     = {eng},
  publisher    = {BioMed Central},
  series       = {BMC Oral Health},
  title        = {Geo-mapping of time trends in childhood caries risk - a method for assessment of preventive care},
  url          = {http://dx.doi.org/10.1186/1472-6831-12-9},
  volume       = {12},
  year         = {2012},
}