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Lifestyle behaviours and beliefs of pregnant women with gestational diabetes: a longitudinal follow-up study
Women with gestational diabetes mellitus (GDM) have increased risk of adverse pregnancy outcomes such as delivering Large-for-gestational-age babies, preeclampsia or birth trauma, as well as increased risk of developing type 2 diabetes (T2DM) later in life. Lifestyle management through a healthy die...
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| Format: | Thesis |
| Language: | English |
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Department of Human Biology
2020
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| _version_ | 1867613186816999424 |
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| access_status_str | Open Access |
| author | Krige, Stephanie Marie |
| author2 | Harbron, Janetta |
| author_browse | Harbron, Janetta Krige, Stephanie Marie |
| author_facet | Harbron, Janetta Krige, Stephanie Marie |
| author_sort | Krige, Stephanie Marie |
| collection | Thesis |
| description | Women with gestational diabetes mellitus (GDM) have increased risk of adverse pregnancy outcomes such as delivering Large-for-gestational-age babies, preeclampsia or birth trauma, as well as increased risk of developing type 2 diabetes (T2DM) later in life. Lifestyle management through a healthy diet and physical activity both during and after a GDM pregnancy is the first line treatment option in GDM management and for delaying the onset of T2DM. The research for this Master thesis had two main aims: firstly, to investigate the dietary intake and beliefs related to dietary intake of pregnant women with GDM in Cape Town, and whether they adhere to established dietary recommendations and secondly, to investigate the change in dietary intake, physical activity and associated factors as well as beliefs related to these lifestyle behaviours in women with GDM from pregnancy to a postpartum follow-up assessment. Methods: For the first aim a cross-sectional study was conducted on 239 pregnant women with GDM in Cape Town and for the second aim, 98 women were followed-up 3 to 15 months postpartum. Assessments included: a quantified Food Frequency Questionnaire (qFFQ), General Practice Physical Activity Questionnaire (GPPAQ) and beliefs relating to specific dietary components were assessed using the Theory of Planned Behaviour (TPB). Results: At baseline, the majority of the sample had inadequate intakes of vitamin D (87.4%), folate (96.5%) and iron (91.3%), and the dietary intake of these women was not optimal and fell short in meeting several nutritional guidelines for pregnant women with hyperglycaemia. At follow-up, the dietary changes made during pregnancy were not maintained postpartum. Fruit and vegetable intake (F&V) fell short of the recommended 400g intake at both baseline and follow-up. The intake of carbohydrates, added sugar, table sugar, sugar sweetened beverages (SSBs), pulses and energy-dense foods increased significantly from pregnancy to postpartum. In conclusion, women with prior GDM fail to maintain the dietary changes made during pregnancy. These women being at risk for the development of T2DM would benefit from interventions supporting behaviour change towards a healthier lifestyle in pregnancy and continued in the postpartum period. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/31399 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:08.355Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Department of Human Biology |
| publisherStr | Department of Human Biology |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/31399 Lifestyle behaviours and beliefs of pregnant women with gestational diabetes: a longitudinal follow-up study Krige, Stephanie Marie Harbron, Janetta Booley, Sharmilah Medicine Women with gestational diabetes mellitus (GDM) have increased risk of adverse pregnancy outcomes such as delivering Large-for-gestational-age babies, preeclampsia or birth trauma, as well as increased risk of developing type 2 diabetes (T2DM) later in life. Lifestyle management through a healthy diet and physical activity both during and after a GDM pregnancy is the first line treatment option in GDM management and for delaying the onset of T2DM. The research for this Master thesis had two main aims: firstly, to investigate the dietary intake and beliefs related to dietary intake of pregnant women with GDM in Cape Town, and whether they adhere to established dietary recommendations and secondly, to investigate the change in dietary intake, physical activity and associated factors as well as beliefs related to these lifestyle behaviours in women with GDM from pregnancy to a postpartum follow-up assessment. Methods: For the first aim a cross-sectional study was conducted on 239 pregnant women with GDM in Cape Town and for the second aim, 98 women were followed-up 3 to 15 months postpartum. Assessments included: a quantified Food Frequency Questionnaire (qFFQ), General Practice Physical Activity Questionnaire (GPPAQ) and beliefs relating to specific dietary components were assessed using the Theory of Planned Behaviour (TPB). Results: At baseline, the majority of the sample had inadequate intakes of vitamin D (87.4%), folate (96.5%) and iron (91.3%), and the dietary intake of these women was not optimal and fell short in meeting several nutritional guidelines for pregnant women with hyperglycaemia. At follow-up, the dietary changes made during pregnancy were not maintained postpartum. Fruit and vegetable intake (F&V) fell short of the recommended 400g intake at both baseline and follow-up. The intake of carbohydrates, added sugar, table sugar, sugar sweetened beverages (SSBs), pulses and energy-dense foods increased significantly from pregnancy to postpartum. In conclusion, women with prior GDM fail to maintain the dietary changes made during pregnancy. These women being at risk for the development of T2DM would benefit from interventions supporting behaviour change towards a healthier lifestyle in pregnancy and continued in the postpartum period. 2020-02-28T13:14:32Z 2020-02-28T13:14:32Z 2019 2020-02-28T09:03:07Z Master Thesis Masters MSc http://hdl.handle.net/11427/31399 eng application/pdf Department of Human Biology Faculty of Health Sciences |
| spellingShingle | Medicine Krige, Stephanie Marie Lifestyle behaviours and beliefs of pregnant women with gestational diabetes: a longitudinal follow-up study |
| thesis_degree_str | Master's |
| title | Lifestyle behaviours and beliefs of pregnant women with gestational diabetes: a longitudinal follow-up study |
| title_full | Lifestyle behaviours and beliefs of pregnant women with gestational diabetes: a longitudinal follow-up study |
| title_fullStr | Lifestyle behaviours and beliefs of pregnant women with gestational diabetes: a longitudinal follow-up study |
| title_full_unstemmed | Lifestyle behaviours and beliefs of pregnant women with gestational diabetes: a longitudinal follow-up study |
| title_short | Lifestyle behaviours and beliefs of pregnant women with gestational diabetes: a longitudinal follow-up study |
| title_sort | lifestyle behaviours and beliefs of pregnant women with gestational diabetes a longitudinal follow up study |
| topic | Medicine |
| url | http://hdl.handle.net/11427/31399 |
| work_keys_str_mv | AT krigestephaniemarie lifestylebehavioursandbeliefsofpregnantwomenwithgestationaldiabetesalongitudinalfollowupstudy |