Protocol for a cluster randomized controlled trial to study the effectiveness of an obesity and diabetes intervention (PASOS) in an immigrant farmworker population

Abstract

BackgroundStudies have shown that the prevalence of overweight, obesity and diabetes are higher in the largely Hispanic, immigrant farmworker population in California. Though to date, few interventional studies have focused on these issues in this at-risk population. The objective of this paper is to describe the study design of a cluster randomized controlled trial aimed at evaluating the effectiveness of an obesity and diabetes work place intervention in an immigrant farm worker population.MethodsPASOS is an obesity and diabetes intervention program that will be implemented on ranches where immigrant farmworkers spend a considerable amount of time each day. This cluster randomized controlled study will enroll approximately 600 farmworkers. Using a uniform distribution for random number generation, ranches are randomized using a 1:1 ratio as either control or intervention. Baseline data will be taken from eligible participants and analyzed against data collected at the post-intervention, 6-month, 1-year, and 1.5-year follow-ups. The enrollment period is 1.5 years.DiscussionFew studies have been conducted that aim to evaluate the effectiveness of a worksite intervention for obesity and diabetes prevention in a largely Hispanic, farmworker population. This study has been tailored to this population in order to enhance the feasibility of implementation and retention. If successful in reducing obesity and increasing healthy lifestyle choices to reduce diabetes, this study design can be implemented on a larger scale.Trial registrationNCT02480244. Registered 24 June 2015.Electronic supplementary materialThe online version of this article (10.1186/s12889-018-5560-0) contains supplementary material, which is available to authorized users.

Scaling‐up evidence‐based obesity interventions: A systematic review assessing intervention adaptations and effectiveness and quantifying the scale‐up penalty

“…From these searches, initially 21 studies were identified as eligible; however, 11 studies were subsequently excluded at the data‐extraction phase for various reasons: The efficacy trials for the PEACH QLD study and the Active‐For‐Life study reported within‐group improvement—but no between‐group difference—on measures of weight status between the trial arms postintervention; Action Schools! BC, TXT2BFiT, and the YOG‐Obesity studies found no significant difference on a measure of weight status in the pre–scale‐up RCT; Camp NERF had no available data for the pre–scale‐up RCT; CHAT and PASOS had no follow‐up outcome data (authors of these studies were contacted; however, no follow‐up data were able to be supplied); the original pre–scale‐up trial of EPODE was a non‐RCT design; Healthy and Vital did not include a measure of weight status, physical activity, or nutrition as its primary outcome measure; and finally, SHED‐IT tested an additional component in the larger trial where both control and intervention arms received SHED‐IT while the intervention arm also received a weight loss maintenance programme.…”

Fatores Associados a Alterações Glicêmicas Em Trabalhadores Feirantes

“…Outra variável que apresentou significância foi a escolaridade, sendo verificado nos participantes que estudaram até o ensino fundamental e nos analfabetos uma frequência alta, o que corrobora com outros estudos (17,19) . Pessoas com baixa escolaridade têm prevalência duas vezes maior para DM (25) . Desta forma, compreende-se que a educação tem influência significativa no bem-estar, tanto individual quanto coletivo (26) , ao passo que, quanto menor o nível de escolaridade, maior a prevalência de DM (23) , pois a escolaridade influenciará diretamente nas escolhas sobre promoção da saúde e prevenção de doenças (25) .…”

“…Pessoas com baixa escolaridade têm prevalência duas vezes maior para DM (25) . Desta forma, compreende-se que a educação tem influência significativa no bem-estar, tanto individual quanto coletivo (26) , ao passo que, quanto menor o nível de escolaridade, maior a prevalência de DM (23) , pois a escolaridade influenciará diretamente nas escolhas sobre promoção da saúde e prevenção de doenças (25) .…”

“…Quanto à convivência marital, o estudo evidenciou uma frequência maior para os que convivem maritalmente. Entretanto, estudos retratam que não estar casado eleva a possibilidade diagnóstica de DM, uma vez que ser sozinho pode dificultar o tratamento da doença (25) .…”

Communication strategies in the prevention of type 2 diabetes and gestational diabetes in vulnerable groups: A scoping review

“…We identi ed 21 studies that used any kind of ADPP (in 12 studies, it was the main focus [17][18][19][20][21][22][23][24][25][26][27][28] [31] were also used as a curriculum base for some of the included studies (e.g., NDEP [32] and NDPP [28]). The included studies (n = 21) targeted mostly migrants (n = 9) and ethnic groups (n = 6).…”