Dataset Information

Diabetes incidence and projections from prevalence surveys in Samoa over 1978-2013.

ABSTRACT:

Objectives

This study estimates type 2 diabetes (T2DM) incidence in Samoans aged 25-64 years from sequential, irregularly spaced, cross-sectional population prevalence surveys.

Methods

T2DM prevalence from eight population surveys conducted over 1978-2013 (n = 12,516) was adjusted for census region, sex, and 5-year age group to the nearest previous census. Annual T2DM incidence was calculated from adjusted prevalences (by sex), using birth cohorts constructed from age-period matrices. Projections of T2DM incidence to 2020 were estimated, based on various scenarios of population weight change using Poisson regression.

Results

Over 1978-2013, T2DM incidence was estimated to increase from 1.12 to 8.44 per 1000 person-years in men and from 2.55 to 8.04 per 1000 in women. Based on regression modeling, if mean population weight was stabilized from 2013, absolute incidence reductions of 0.9 per 1000 person-years (7% lower) are predicted in 2020, compared to the current period trend in weight gain.

Conclusions

T2DM incidence can be calculated from irregularly conducted population risk factor surveys which may be useful in developing countries with limited resources.

SUBMITTER: Lin S

PROVIDER: S-EPMC5487887 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

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Publications

Diabetes incidence and projections from prevalence surveys in Samoa over 1978-2013.

Lin Sophia S Naseri Take T Linhart Christine C Morrell Stephen S Taylor Richard R Mcgarvey Stephen T ST Magliano Dianna J DJ Zimmet Paul P

International journal of public health 20170309 6

<h4>Objectives</h4>This study estimates type 2 diabetes (T2DM) incidence in Samoans aged 25-64 years from sequential, irregularly spaced, cross-sectional population prevalence surveys.<h4>Methods</h4>T2DM prevalence from eight population surveys conducted over 1978-2013 (n = 12,516) was adjusted for census region, sex, and 5-year age group to the nearest previous census. Annual T2DM incidence was calculated from adjusted prevalences (by sex), using birth cohorts constructed from age-period matri ...[more]

PMID: 28280865

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Project description:ImportanceRecent data on prevalence, awareness, treatment, and risk factors of diabetes in China is necessary for interventional efforts.ObjectiveTo estimate trends in prevalence, awareness, treatment, and risk factors of diabetes in China based on national data.Design, setting, and participantsCross-sectional nationally representative survey data collected in adults aged 18 years or older in mainland China from 170 287 participants in the 2013-2014 years and 173 642 participants in the 2018-2019 years.ExposuresFasting plasma glucose and hemoglobin A1c levels were measured for all participants. A 2-hour oral glucose tolerance test was conducted for all participants without diagnosed diabetes.Main outcomes and measuresPrimary outcomes were diabetes and prediabetes defined according to American Diabetes Association criteria. Secondary outcomes were awareness, treatment, and control of diabetes and prevalence of risk factors. A hemoglobin A1c level of less than 7.0% (53 mmol/mol) among treated patients with diabetes was considered adequate glycemic control.ResultsIn 2013, the median age was 55.8 years (IQR, 46.4-65.2 years) and the weighted proportion of women was 50.0%; in 2018, the median age was 51.3 years (IQR, 42.1-61.6 years), and the weighted proportion of women was 49.5%. The estimated prevalence of diabetes increased from 10.9% (95% CI, 10.4%-11.5%) in 2013 to 12.4% (95% CI, 11.8%-13.0%) in 2018 (P < .001). The estimated prevalence of prediabetes was 35.7% (95% CI, 34.2%-37.3%) in 2013 and 38.1% (95% CI, 36.4%-39.7%) in 2018 (P = .07). In 2018, among adults with diabetes, 36.7% (95% CI, 34.7%-38.6%) reported being aware of their condition, and 32.9% (95% CI, 30.9%-34.8%) reported being treated; 50.1% (95% CI, 47.5%-52.6%) of patients receiving treatment were controlled adequately. These rates did not change significantly from 2013. From 2013 to 2018, low physical activity, high intake of red meat, overweight, and obesity significantly increased in prevalence.Conclusions and relevanceIn this survey study, the estimated diabetes prevalence was high and increased from 2013 to 2018. There was no significant improvement in the estimated prevalence of adequate treatment.

Dataset Information

Diabetes incidence and projections from prevalence surveys in Samoa over 1978-2013.

Objectives

Methods

Results

Conclusions

Publications

Diabetes incidence and projections from prevalence surveys in Samoa over 1978-2013.

Similar Datasets

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