Efectividad de una intervención digital compleja en los hábitos alimentarios de gestantes con obesidad preconcepcional.

Objective: To assess the effectiveness of a complex digital health intervention, in pregnant women with obesity, by means of an app for advice eating habits and a virtual midwife's support, regarding their eating habits, and also to analyze the global satisfaction with digital intervention. Methods: A parallel randomized clinical trial with two arms 1:1 with intervention group (IG) and control group (CG) was conducted. 150 pregnant women with pre-pregnancy obesity were included. Both groups received usual prenatal care. The intervention, in the IG, was delivered with smartband and an app providing advice about eating habits and with a virtual midwife to support women. The validated «Questionnaire of eating habits for patients with overweight and obesity» was administrated and measured using a 1-to-5-point Likert scale. Statistical tests were two-sided and evaluated at an a level of 0.05. Analyzes were performed with SPSS v. 25 and SAS v. 9.4. Results: 110 (73.3% of the total) women were analyzed. In the IG, the mean score for eating habits was higher than in the CG (3.49 ± 0.36 versus 3.35 ± 0.41; p=0.056), but no statistically significant differences were observed. In the IG, the mean score for the intake of the type of food was higher than in the CG (3.49 ± 0.78 versus 3.18 ± 0.71; p=0.019). The mean of global satisfaction was 4.76 ± 0.6 points. Conclusions: The use of a complex digital intervention was effective in improving the intake of the type of food compared to pregnant women who only received usual prenatal care. [ABSTRACT FROM AUTHOR]