Barbara Stewart‐knox
Biographic Data
| ID | 4889378 |
|---|---|
| NAME | Barbara Stewart‐knox |
| GIVEN NAMES | Barbara |
| FAMILY NAME | Stewart‐knox |
| SIGNATURE | KNOX B S |
| AFFILIATIONS | University of Ulster |
| ORCID | 0000-0002-6741-3657 |
| VERIFIED | Yes |
| TOTAL WORKS | 24 |
| TOTAL CITATIONS | 11 |
| AUTHOR COUNT | 24 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2005 |
| LATEST PUBLICATION YEAR | 2025 |
| H-INDEX | 2 |
Association between dietary factors and health-related quality of life in adolescents longitudinally over three years from age 11–16 years
These findings imply the importance of diet to quality of life during adolescence. Further research is required to understand why certain dietary factors were associated with lower HRQOL over the course of adolescence. Meanwhile, intervention to enhance HRQoL should target girls while efforts to enhance 'fruit and vegetable' intake should target boys
Association between nutrition self-efficacy, health locus of control and food choice motives in consumers in nine European countries
We investigated associations between food choice motives and psychological determinants of dietary health behaviour change (nutrition self-efficacy, NS-E, and health locus of control, HLoC) among 9381 participants (18–65 years, 49.4% females) from nine European countries. Price was the highest rated food choice motive. Higher importance of all motives was associated with higher NS-E and with higher Internal HLoC. Relationships between food choice…
A Survey of Breastfeeding Attitudes and Health Locus of Control in the Nigerian Population
This implies a need to explore health locus of control when promoting positive attitudes to breastfeeding and supporting families in breastfeeding advocacy
Self-efficacy, habit strength, health locus of control and response to the personalised nutrition Food4Me intervention study
Purpose Randomised controlled trials identify causal links between variables but not why an outcome has occurred. This analysis sought to determine how psychological factors assessed at baseline influenced response to personalised nutrition. Design/methodology/approach Web-based, randomised, controlled trial (RCT) was conducted across seven European countries. Volunteers, both male and female, aged over 18 years were randomised to either a non-pe…
Less Screen Time, More Frequent Fruit and Vegetable Intake and Physical Activity are Associated with Greater Mental Wellbeing in Adolescents
Wellbeing declines during adolescence, for which the reasons are unclear. This analysis explored associations between wellbeing and multiple lifestyle, socioeconomic and school-level factors in young people. Data were collected as part of the Wellbeing in School (WiSe) survey of adolescent school children in Northern Ireland at age 13–14 years ( N = 1618; 49% female) and 15–16 years ( N = 1558; 50.5% female). Wellbeing was assessed using the shor…
Exploring the association between mental wellbeing, health-related quality of life, family affluence and food choice in adolescents
Young people choose energy-dense, nutrient-poor diets, yet understanding of potential determinants is limited. Associations between food choices, mental wellbeing, health-related quality of life (HRQoL) and family affluence were explored to identify targets for intervention to promote dietary health and wellbeing in young people. Adolescents were recruited via post-primary schools in the UK and surveyed at two time-points when aged 13-14 years an…
Food choice motives, attitude towards and intention to adopt personalised nutrition
Objective The present study explored associations between food choice motives, attitudes towards and intention to adopt personalised nutrition, to inform communication strategies based on consumer priorities and concerns. Design/Setting A survey was administered online which included the Food Choice Questionnaire (FCQ) and items assessing attitudes towards and intention to adopt personalised nutrition. Subjects Nationally representative samples w…
“Bringing heaven down to earth”: The purpose and place of religion in UK food aid
Purpose This paper uses data from a city with a multi-ethnic, multi-faith population to better understand faith-based food aid. The paper aims to understand what constitutes faith-based responses to food insecurity, compare the prevalence and nature of faith-based food aid across different religions and explore how community food aid meets the needs of a multi-ethnic, multi-faith population. Design/methodology/approach The study involved two phas…
Public perceptions of personalised nutrition through the lens of Social Cognitive Theory
Social Cognitive Theory has been used to explain findings derived from focus group discussions ( N = 4) held in the United Kingdom with the aim of informing best practice in personalised nutrition. Positive expectancies included weight loss and negative expectancies surrounded on-line security. Monitoring and feedback were crucial to goal setting and progress. Coaching by the service provider, family and friends was deemed important for self-effi…
Making personalised nutrition the easy choice: Creating policies to break down the barriers and reap the benefits
Mood and cognition in healthy older European adults: The Zenith study
Moods, by and large, have a small transient effect on cognition in this older sample
Psychological pathways to central obesity in healthy middle-aged British
Promoting positive attitudes to breastfeeding: The development and evaluation of a theory‐based intervention with school children involving a cluster randomised controlled trial
The objective of this study was to design, implement and evaluate an intervention based on the theory of planned behaviour (TPB) to enhance young peoples' motivations to breastfeed/support a partner to breastfeed. Six semi-structured focus groups were first conducted with 48 13-14-year-olds from two schools in Northern Ireland. The salient beliefs elicited were subsequently used to design a TPB-based questionnaire that was then administered to 20…
Factors influencing European consumer uptake of personalised nutrition. Results of a qualitative analysis
Associations between obesity (BMI and waist circumference) and socio-demographic factors, physical activity, dietary habits, life events, resilience, mood, perceived stress and hopelessness in healthy…
These data suggest that intervention to treat and/or prevent obesity should target males, particularly those who have left education early and seek to promote resilience. In GB, targeting those with high alcohol consumption and encouraging physical activity, particularly among those who have experienced illness in a close friend or relative may also be effective in reducing obesity
Predictors of taste acuity in healthy older Europeans
Supplemented zinc does not alter mood in healthy older European adults – a randomised placebo-controlled trial: The Zenith study
Objective Older people are vulnerable to zinc deficiency, which may impact upon their mood. This randomised, placebo-controlled, double-blind intervention study aimed to investigate the effect of oral zinc gluconate supplementation (15 mg/d; 30 mg/d; and placebo) on subjective mood (affect) in older Europeans. Subjects Healthy volunteers ( n 387) aged 55–87 years were recruited. Setting Volunteers in Rome (Italy; n 108) and Grenoble (France; n 91…
P2-289 Obesity and whole blood serotonin in healthy volunteers
The aim of this study was to explore associations between fasting whole blood serotonin levels and anthropometric measures in healthy male and female volunteers (N=68) aged between 20 and 66 years. A fasting (20 ml) venous blood sample for whole blood serotonin was collected, after which body mass index and waist circumference (WC) were measured by DEXA (dual energy x-ray absorptiometry) scan. Data were analysed using the SPSS (Statistical Packag…
SP4-42 Anthropometric measures, food habits and perceived stress among urban south Indians
Associations between waist circumference, Body Mass Index (BMI), food habits and perceived stress were investigated in urban dwelling South Indian adults (N=347). The questionnaire was informed by prior qualitative research, piloted and administered by interview-assisted survey in English and Tamil. A 25-item Food Frequency Questionnaire (FFQ) assessed eating habits on a seven point scale from “never” to “five times daily”. Perceived stress (PS) …
SP6-35 Psychological well-being and obesity in older British adults
The aim of this research was to better understand the psycho-social context of obesity to inform prevention and treatment of obesity at both the individual and public health level. A representative sample of middle-aged adults aged 40+ years recruited in Great Britain (GB) (N=1182) underwent interview assisted survey to explore associations between waist circumference (WC), demographic factors, physical activity, dietary habits (FFQ), life events…
Differences between older and younger Poles in functional food consumption, awareness of metabolic syndrome risk and perceived barriers to health improvement
Folate status and mood: Is there a relationship
Objective To explore the relationship between subjective mood, folate status and homocysteine in healthy individuals. Design Subjective mood assessments were completed twice daily over the course of one week using the Positive and Negative Affect Scale (PANAS). The PANAS is a validated scale which considers mood state on two distinct continua, one reflecting positive mood and the other negative mood, each requiring response to 10 adjectives on a …
Children Talking: Emerging Perspectives and Experiences of Cigarette Smoking
Despite efforts to prevent the onset of smoking, the rate among older children remains high. In this article, the authors report on a longitudinal, qualitative study of 11 to 16-year-old children describing children's construction of what it means to be a smoker, the reasons given for children smoking, and their views of smoking behavior. Findings indicate that children adopt broad interpretations of what constitutes smoking behavior; although th…
Flesh colour dominates consumer preference for chicken
Factors influencing European consumer uptake of personalised nutrition. Results of a qualitative analysis
Children Talking: Emerging Perspectives and Experiences of Cigarette Smoking
Despite efforts to prevent the onset of smoking, the rate among older children remains high. In this article, the authors report on a longitudinal, qualitative study of 11 to 16-year-old children describing children's construction of what it means to be a smoker, the reasons given for children smoking, and their views of smoking behavior. Findings indicate that children adopt broad interpretations of what constitutes smoking behavior; although th…
Public perceptions of personalised nutrition through the lens of Social Cognitive Theory
Social Cognitive Theory has been used to explain findings derived from focus group discussions ( N = 4) held in the United Kingdom with the aim of informing best practice in personalised nutrition. Positive expectancies included weight loss and negative expectancies surrounded on-line security. Monitoring and feedback were crucial to goal setting and progress. Coaching by the service provider, family and friends was deemed important for self-effi…
Flesh colour dominates consumer preference for chicken
Flesh colour dominates consumer preference for chicken
Children Talking: Emerging Perspectives and Experiences of Cigarette Smoking
Despite efforts to prevent the onset of smoking, the rate among older children remains high. In this article, the authors report on a longitudinal, qualitative study of 11 to 16-year-old children describing children's construction of what it means to be a smoker, the reasons given for children smoking, and their views of smoking behavior. Findings indicate that children adopt broad interpretations of what constitutes smoking behavior; although th…
Folate status and mood: Is there a relationship
Objective To explore the relationship between subjective mood, folate status and homocysteine in healthy individuals. Design Subjective mood assessments were completed twice daily over the course of one week using the Positive and Negative Affect Scale (PANAS). The PANAS is a validated scale which considers mood state on two distinct continua, one reflecting positive mood and the other negative mood, each requiring response to 10 adjectives on a …
Differences between older and younger Poles in functional food consumption, awareness of metabolic syndrome risk and perceived barriers to health improvement
Supplemented zinc does not alter mood in healthy older European adults – a randomised placebo-controlled trial: The Zenith study
Objective Older people are vulnerable to zinc deficiency, which may impact upon their mood. This randomised, placebo-controlled, double-blind intervention study aimed to investigate the effect of oral zinc gluconate supplementation (15 mg/d; 30 mg/d; and placebo) on subjective mood (affect) in older Europeans. Subjects Healthy volunteers ( n 387) aged 55–87 years were recruited. Setting Volunteers in Rome (Italy; n 108) and Grenoble (France; n 91…
P2-289 Obesity and whole blood serotonin in healthy volunteers
The aim of this study was to explore associations between fasting whole blood serotonin levels and anthropometric measures in healthy male and female volunteers (N=68) aged between 20 and 66 years. A fasting (20 ml) venous blood sample for whole blood serotonin was collected, after which body mass index and waist circumference (WC) were measured by DEXA (dual energy x-ray absorptiometry) scan. Data were analysed using the SPSS (Statistical Packag…
SP4-42 Anthropometric measures, food habits and perceived stress among urban south Indians
Associations between waist circumference, Body Mass Index (BMI), food habits and perceived stress were investigated in urban dwelling South Indian adults (N=347). The questionnaire was informed by prior qualitative research, piloted and administered by interview-assisted survey in English and Tamil. A 25-item Food Frequency Questionnaire (FFQ) assessed eating habits on a seven point scale from “never” to “five times daily”. Perceived stress (PS) …
SP6-35 Psychological well-being and obesity in older British adults
The aim of this research was to better understand the psycho-social context of obesity to inform prevention and treatment of obesity at both the individual and public health level. A representative sample of middle-aged adults aged 40+ years recruited in Great Britain (GB) (N=1182) underwent interview assisted survey to explore associations between waist circumference (WC), demographic factors, physical activity, dietary habits (FFQ), life events…
Associations between obesity (BMI and waist circumference) and socio-demographic factors, physical activity, dietary habits, life events, resilience, mood, perceived stress and hopelessness in healthy…
These data suggest that intervention to treat and/or prevent obesity should target males, particularly those who have left education early and seek to promote resilience. In GB, targeting those with high alcohol consumption and encouraging physical activity, particularly among those who have experienced illness in a close friend or relative may also be effective in reducing obesity
Predictors of taste acuity in healthy older Europeans
Promoting positive attitudes to breastfeeding: The development and evaluation of a theory‐based intervention with school children involving a cluster randomised controlled trial
The objective of this study was to design, implement and evaluate an intervention based on the theory of planned behaviour (TPB) to enhance young peoples' motivations to breastfeed/support a partner to breastfeed. Six semi-structured focus groups were first conducted with 48 13-14-year-olds from two schools in Northern Ireland. The salient beliefs elicited were subsequently used to design a TPB-based questionnaire that was then administered to 20…
Factors influencing European consumer uptake of personalised nutrition. Results of a qualitative analysis
Mood and cognition in healthy older European adults: The Zenith study
Moods, by and large, have a small transient effect on cognition in this older sample
Psychological pathways to central obesity in healthy middle-aged British
Making personalised nutrition the easy choice: Creating policies to break down the barriers and reap the benefits
“Bringing heaven down to earth”: The purpose and place of religion in UK food aid
Purpose This paper uses data from a city with a multi-ethnic, multi-faith population to better understand faith-based food aid. The paper aims to understand what constitutes faith-based responses to food insecurity, compare the prevalence and nature of faith-based food aid across different religions and explore how community food aid meets the needs of a multi-ethnic, multi-faith population. Design/methodology/approach The study involved two phas…
Public perceptions of personalised nutrition through the lens of Social Cognitive Theory
Social Cognitive Theory has been used to explain findings derived from focus group discussions ( N = 4) held in the United Kingdom with the aim of informing best practice in personalised nutrition. Positive expectancies included weight loss and negative expectancies surrounded on-line security. Monitoring and feedback were crucial to goal setting and progress. Coaching by the service provider, family and friends was deemed important for self-effi…
Food choice motives, attitude towards and intention to adopt personalised nutrition
Objective The present study explored associations between food choice motives, attitudes towards and intention to adopt personalised nutrition, to inform communication strategies based on consumer priorities and concerns. Design/Setting A survey was administered online which included the Food Choice Questionnaire (FCQ) and items assessing attitudes towards and intention to adopt personalised nutrition. Subjects Nationally representative samples w…
Exploring the association between mental wellbeing, health-related quality of life, family affluence and food choice in adolescents
Young people choose energy-dense, nutrient-poor diets, yet understanding of potential determinants is limited. Associations between food choices, mental wellbeing, health-related quality of life (HRQoL) and family affluence were explored to identify targets for intervention to promote dietary health and wellbeing in young people. Adolescents were recruited via post-primary schools in the UK and surveyed at two time-points when aged 13-14 years an…
Self-efficacy, habit strength, health locus of control and response to the personalised nutrition Food4Me intervention study
Purpose Randomised controlled trials identify causal links between variables but not why an outcome has occurred. This analysis sought to determine how psychological factors assessed at baseline influenced response to personalised nutrition. Design/methodology/approach Web-based, randomised, controlled trial (RCT) was conducted across seven European countries. Volunteers, both male and female, aged over 18 years were randomised to either a non-pe…
Less Screen Time, More Frequent Fruit and Vegetable Intake and Physical Activity are Associated with Greater Mental Wellbeing in Adolescents
Wellbeing declines during adolescence, for which the reasons are unclear. This analysis explored associations between wellbeing and multiple lifestyle, socioeconomic and school-level factors in young people. Data were collected as part of the Wellbeing in School (WiSe) survey of adolescent school children in Northern Ireland at age 13–14 years ( N = 1618; 49% female) and 15–16 years ( N = 1558; 50.5% female). Wellbeing was assessed using the shor…
A Survey of Breastfeeding Attitudes and Health Locus of Control in the Nigerian Population
This implies a need to explore health locus of control when promoting positive attitudes to breastfeeding and supporting families in breastfeeding advocacy
Association between dietary factors and health-related quality of life in adolescents longitudinally over three years from age 11–16 years
These findings imply the importance of diet to quality of life during adolescence. Further research is required to understand why certain dietary factors were associated with lower HRQOL over the course of adolescence. Meanwhile, intervention to enhance HRQoL should target girls while efforts to enhance 'fruit and vegetable' intake should target boys
Association between nutrition self-efficacy, health locus of control and food choice motives in consumers in nine European countries
We investigated associations between food choice motives and psychological determinants of dietary health behaviour change (nutrition self-efficacy, NS-E, and health locus of control, HLoC) among 9381 participants (18–65 years, 49.4% females) from nine European countries. Price was the highest rated food choice motive. Higher importance of all motives was associated with higher NS-E and with higher Internal HLoC. Relationships between food choice…
Medicine (19 works) · Psychology (17 works) · Gerontology (9 works) · Demography (8 works) · Environmental health (8 works) · Obesity, Physical Activity, Diet (8 works) · Developmental psychology (7 works) · Internal Medicine (7 works) · Mood (7 works) · Obesity (7 works)