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Randomized Controlled Trial
. 2019 Jul 3;19(1):88.
doi: 10.1186/s12905-019-0788-0.

The effect of a diabetes prevention program on dietary quality in women with previous gestational diabetes

Sharleen O'Reilly  1 , Vincent Versace  2 , Mohammadreza Mohebbi  3 , Siew Lim  4 , Edward Janus  5 , James Dunbar  2
Affiliations
Randomized Controlled Trial

The effect of a diabetes prevention program on dietary quality in women with previous gestational diabetes

Sharleen O'Reilly et al. BMC Womens Health. .

Abstract

Background: Women with gestational diabetes have low diet quality. We evaluated the effectiveness of a group-based lifestyle modification program for improvement of dietary quality in women with previous gestational diabetes predominantly within their first postnatal year.

Methods: Women were randomised to intervention (n = 284) or usual care (n = 289). Dietary data was collected at baseline and twelve months using a food frequency questionnaire and recoded into the Australian Recommended Food Score (ARFS). Mixed model analyses investigated the intervention effect on ARFS (per-protocol-set (PPS) excluded women without the minimum intervention exposure).

Results: Baseline mean total ARFS was low (31.8 ± 8.9, maximum score = 74) and no significant changes were seen in total ARFS (Cohen's D = - 0.06). 2% reduction in alcohol for intervention (0.05, 0.26) compared with - 1% for usual care (Odds ratio: 0.68; 95%CI 0.46, 0.99). Dairy ARFS sub-category significantly improved (low fat/saturated fat foods) in the intervention group over time compared with usual care for the PPS analysis (dairy + 0.28 in intervention (95%CI 0.08, 0.48) compared with + 0.02 in usual care (95%CI -0.14, 0.18) (group-by-treatment interaction p = 0.05, Cohen's D = 0.14)).

Conclusions: Engaging with the intervention improved aspects of diet quality that aligned with minimum intervention exposure, but the total diet quality remains low. Further research is needed to improve diabetes prevention program engagement.

Trial registration: Australian New Zealand Clinical Trials Registry ANZCTRN12610000338066 , April 2010.

Keywords: Diabetes prevention program; Diet quality; Gestational diabetes; Program engagement.

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Conflict of interest statement

The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.

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