OBJECTIVE: To assess the relationship between diet quality and body mass index (BMI) in Canadian adults. METHODS: We used confidential, individual-level data on 6325 adult men and 7211 nonpregnant adult women from the 2004 Canadian Community Health Survey to construct 2 diet quality indices (the Diet Quality Index [DQI] and and the Healthy Eating Index [HEI]) and BMI. After adjusting for known observable confounders, a latent class modeling analysis was conducted to account for unobservable confounders. RESULTS: We found that there were 2 latent classes (low-BMI and high-BMI components), and that DQI and HEI indices were negatively associated with BMI in the high-BMI component. In the high-BMI component, a one-unit increase in DQI score is associated with a 0.053 kg/m(2) decrease in BMI, whereas a one-unit increase in HEI score is associated with a 0.095 kg/m(2) decrease in BMI. Subgroup analyses revealed that the association between diet quality and obesity was stronger in women. CONCLUSIONS: Diet quality is associated with lower BMI in high-BMI individuals in Canada. Diet quality exhibits a distinct association in each latent class; this association is stronger in women. Latent class analysis offers a superior methodological framework in understanding the modifiable risk factors for obesity.
OBJECTIVE: To assess the relationship between diet quality and body mass index (BMI) in Canadian adults. METHODS: We used confidential, individual-level data on 6325 adult men and 7211 nonpregnant adult women from the 2004 Canadian Community Health Survey to construct 2 diet quality indices (the Diet Quality Index [DQI] and and the Healthy Eating Index [HEI]) and BMI. After adjusting for known observable confounders, a latent class modeling analysis was conducted to account for unobservable confounders. RESULTS: We found that there were 2 latent classes (low-BMI and high-BMI components), and that DQI and HEI indices were negatively associated with BMI in the high-BMI component. In the high-BMI component, a one-unit increase in DQI score is associated with a 0.053 kg/m(2) decrease in BMI, whereas a one-unit increase in HEI score is associated with a 0.095 kg/m(2) decrease in BMI. Subgroup analyses revealed that the association between diet quality and obesity was stronger in women. CONCLUSIONS: Diet quality is associated with lower BMI in high-BMI individuals in Canada. Diet quality exhibits a distinct association in each latent class; this association is stronger in women. Latent class analysis offers a superior methodological framework in understanding the modifiable risk factors for obesity.
Authors: Nancy López-Olmedo; Barry M Popkin; Michelle A Mendez; Lindsey Smith Taillie Journal: Public Health Nutr Date: 2019-06-13 Impact factor: 4.022
Authors: Carmela Rodríguez-Martin; Rosario Alonso-Domínguez; María C Patino-Alonso; Manuel A Gómez-Marcos; José A Maderuelo-Fernández; Carlos Martin-Cantera; Luis García-Ortiz; José I Recio-Rodríguez Journal: BMC Public Health Date: 2017-04-08 Impact factor: 3.295
Authors: Vanessa DeClercq; Yunsong Cui; Cynthia Forbes; Scott A Grandy; Melanie Keats; Louise Parker; Ellen Sweeney; Zhijie Michael Yu; Trevor J B Dummer Journal: Nutrients Date: 2017-10-21 Impact factor: 5.717