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Robitaille, Julie

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Robitaille

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Julie

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Université Laval. Institut sur la nutrition et les aliments fonctionnels

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ncf11860382

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  • PublicationAccès libre
    Validity and reliability of self-reported measures of foods and nutrients in pregnancy : a systematic review
    (Springer, 2014-07-17) Vézina-Im, Lydi-Anne; Robitaille, Julie
    This systematic review aims to critically appraise evidence on validity and reliability of self-reported measures of foods and nutrients in pregnancy. PubMed and EMBASE were investigated. Fifty-four studies were included. Food-frequency questionnaires had acceptable evidence of validity when compared with biomarkers (͞r between 0.04 and 0.58; k=19), 24-hour recalls (͞r between 0.12 and 0.63; k=11) and food records: (͞r between 0.28 and 0.65; k=12). Dietary history (͞r between 0.07 and 0.47; k=7) and food records (͞r between 0.25 and 0.53; k=7) had acceptable evidence of validity when compared with biomarkers. 24-hour recalls had poor evidence of validity against biomarkers. Evidence on reliability was good for food-frequency questionnaires, acceptable for the dietary history and inconclusive for 24-hour recalls. The results suggest that food-frequency questionnaires and food records have the strongest evidence of validity when assessing nutrition during pregnancy and more studies are needed to validate 24-hour recalls and the dietary history.
  • PublicationAccès libre
    Social support for healthy eating : development and validation of a questionnaire for the French-Canadian population
    (CAB International, 2018-05-28) Carbonneau, Élise; Corneau, Louise; Bradette-Laplante, Maude; Lamarche, Benoît; Lemieux, Simone; Vohl, Marie-Claude; Robitaille, Julie; Desroches, Sophie; Bégin, Catherine; Provencher, Véronique
    Objective: The present study aimed to develop and validate a questionnaire assessing social support for healthy eating in a French-Canadian population. Design: A twenty-one-item questionnaire was developed. For each item, participants were asked to rate the frequency, in the past month, with which the actions described had been done by family and friends in two different environments: (i) at home and (ii) outside of home. The content was evaluated by an expert panel. A validation study sample was recruited and completed the questionnaire twice. Exploratory factor analysis was performed on items to assess the number of subscales. Internal consistency reliability was assessed using Cronbach's ɑ. Test-retest reliability was evaluated with intraclass correlations between scores of the two completions. Setting: Online survey. Subjects: Men and women from the Québec City area (n 150). Results: The content validity assessment led to a few changes, resulting in a twenty-two-item questionnaire. Exploratory factor analysis revealed a two-factor structure for both environments, resulting in four subscales: supportive actions at home; non-supportive actions at home; supportive actions outside of home; and non-supportive actions outside of home. Two items were removed from the questionnaire due to low loadings. The four subscales were found to be reliable (Cronbach's ɑ=0·82-0·94; test-retest intraclass correlation=0·51-0·70). Conclusions: The Social Support for Healthy Eating Questionnaire was developed for a French-Canadian population and demonstrated good psychometric properties. This questionnaire will be useful to explore the role of social support and its interactions with other factors in predicting eating behaviours.
  • PublicationAccès libre
    Social support for healthy eating : development and validation of a questionnaire for the French-Canadian population
    (CAB International, 2018-05-28) Carbonneau, Élise; Corneau, Louise; Bradette-Laplante, Maude; Lamarche, Benoît; Lemieux, Simone; Vohl, Marie-Claude; Robitaille, Julie; Desroches, Sophie; Bégin, Catherine; Provencher, Véronique
    Objective: The present study aimed to develop and validate a questionnaire assessing social support for healthy eating in a French-Canadian population. Design: A twenty-one-item questionnaire was developed. For each item, participants were asked to rate the frequency, in the past month, with which the actions described had been done by family and friends in two different environments: (i) at home and (ii) outside of home. The content was evaluated by an expert panel. A validation study sample was recruited and completed the questionnaire twice. Exploratory factor analysis was performed on items to assess the number of subscales. Internal consistency reliability was assessed using Cronbach’s ɑ. Test–retest reliability was evaluated with intraclass correlations between scores of the two completions. Setting: Online survey. Subjects: Men and women from the Québec City area (n 150). Results: The content validity assessment led to a few changes, resulting in a twenty-two-item questionnaire. Exploratory factor analysis revealed a two-factor structure for both environments, resulting in four subscales: supportive actions at home; non-supportive actions at home; supportive actions outside of home; and non-supportive actions outside of home. Two items were removed from the questionnaire due to low loadings. The four subscales were found to be reliable (Cronbach’s ɑ=0·82–0·94; test–retest intraclass correlation=0·51–0·70). Conclusions: The Social Support for Healthy Eating Questionnaire was developed for a French-Canadian population and demonstrated good psychometric properties. This questionnaire will be useful to explore the role of social support and its interactions with other factors in predicting eating behaviours.
  • PublicationAccès libre
    Validity and reliability of a brief selfreported questionnaire assessing fruit and vegetable consumption among pregnant women
    (BioMed Central, 2016-09-15) Vézina-Im, Lydi-Anne; Perron, Julie; Couillard, Charles; Godin, Gaston; Lemieux, Simone; Robitaille, Julie
    Background: Short instruments measuring frequency of specific foods, such as fruit and vegetable (FV), are increasingly used in interventions. The objective of the study was to verify the validity and test-retest reliability of such an instrument among pregnant women. Methods: Pregnant women from the region of Quebec City, Quebec, Canada, were recruited through e-mails sent to female students and employees of the local university from October 2014 to April 2015. To assess the validity of the fruit and vegetable questionnaire (FVQ) developed by Godin et al. (Can J Public Health 99: 494-498, 2008), pregnant women were asked in a first mailing to complete the FVQ assessing FV intake over the past 7 days and a 3-day estimated food record. A subsample (n¿=¿33) also gave a fasting blood sample and completed a validated semi-quantitative FFQ administered by a trained registered dietitian during a visit at the research center. FV intakes for all instruments were calculated in terms of servings of FV based on Canada’s Food Guide definition of a serving of fruit or vegetable. In order to assess its test-retest reliability, respondents were asked to complete the FVQ 14 days later in a second mailing. Results: Forty-eight pregnant women from all three trimesters completed the questionnaires in the first mailing. FV intake assessed using the FVQ was correlated to FV consumption measured using the food record (r¿=¿0.34, p¿=¿0.0180) and the FFQ (r¿=¿0.61, p¿=¿0.0002). Results were similar when controlling for energy intake and the experience of nausea in the past month. Only ß-cryptoxanthin was significantly correlated to FV intake assessed by the FFQ when adjusted for the presence of nausea (r¿=¿0.35, p¿=¿0.0471). Data on the test-retest reliability was available for 44 women and the intra-class coefficient for the FVQ was 0.72 at a mean 28-day interval. Conclusions: The FVQ has acceptable validity and test-retest reliability values, but seems to underestimate FV servings in pregnant women. It represents an interesting alternative for researchers or clinicians interested in estimating quickly FV intake among pregnant women, such as in large trials or during prenatal visits. The FVQ should however be coupled with other self-reported measures, such as a food record, for assessing precise individual FV intake.
  • PublicationAccès libre
    Development and validation of a nutrition knowledge questionnaire for a Canadian population
    (CABI Pub., 2016-12-27) Bradette-Laplante, Maude (***); Lemieux, Simone; Carbonneau, Élise (***); Vohl, Marie-Claude; Robitaille, Julie; Bégin, Catherine; Provencher, Véronique; Desroches, Sophie (***); Corneau, Louise (***)
    Objective The present study aimed to develop and validate a nutrition knowledge questionnaire in a sample of French Canadians from the province of Quebec, taking into account dietary guidelines. Design A thirty-eight-item questionnaire was developed by the research team and evaluated for content validity by an expert panel, and then administered to respondents. Face validity and construct validity were measured in a pre-test. Exploratory factor analysis and covariance structure analysis were performed to verify the structure of the questionnaire and identify problematic items. Internal consistency and test–retest reliability were evaluated through a validation study. Setting Online survey. Subjects Six nutrition and psychology experts, fifteen registered dietitians (RD) and 180 lay people participated. Results Content validity evaluation resulted in the removal of two items and reformulation of one item. Following face validity, one item was reformulated. Construct validity was found to be adequate, with higher scores for RD v. non-RD (21·5 (sd 2·1) v. 15·7 (sd 3·0) out of 24, P<0·001). Exploratory factor analysis revealed that the questionnaire contained only one factor. Covariance structure analysis led to removal of sixteen items. Internal consistency for the overall questionnaire was adequate (Cronbach’s α=0·73). Assessment of test–retest reliability resulted in significant associations for the total knowledge score (r=0·59, P<0·001). Conclusions This nutrition knowledge questionnaire was found to be a suitable instrument which can be used to measure levels of nutrition knowledge in a Canadian population. It could also serve as a model for the development of similar instruments in other populations.
  • PublicationAccès libre
    Development and validation of the perceived food environment questionnaire in a french-canadian population
    (Published on behalf of the Nutrition Society by CAB International, 2017-04-03) Carbonneau, Élise; Corneau, Louise; Lamarche, Benoît; Lemieux, Simone; Robitaille, Julie
    Objective: The present study aimed to develop and validate a questionnaire assessing perceived food environment in a French-Canadian population. Design: A questionnaire, the Perceived Food Environment Questionnaire, was developed assessing perceived accessibility to healthy (nine items) and unhealthy foods (three items). A pre-test sample was recruited for a pilot testing of the questionnaire. For the validation study, another sample was recruited and completed the questionnaire twice. Exploratory factor analysis was performed on the items to assess the number of factors (subscales). Cronbach's α was used to measure internal consistency reliability. Test-retest reliability was assessed with Pearson correlations. Setting: Online survey. Subjects: Men and women from the Québec City area (n 31 in the pre-test sample; n 150 in the validation study sample). Results: The pilot testing did not lead to any change in the questionnaire. The exploratory factor analysis revealed a two-subscale structure. The first subscale is composed of six items assessing accessibility to healthy foods and the second includes three items related to accessibility to unhealthy foods. Three items were removed from the questionnaire due to low loading on the two subscales. The subscales demonstrated adequate internal consistency (Cronbach's α=0·77 for healthy foods and 0·62 for unhealthy foods) and test-retest reliability (r=0·59 and 0·60, respectively; both P<0·0001). Conclusions: The Perceived Food Environment Questionnaire was developed for a French-Canadian population and demonstrated good psychometric properties. Further validation is recommended if the questionnaire is to be used in other populations.