Associations among blood pressure, salt consumption and body weight status of students from south-western Ontario

作者：Woodruff Sarah J^*; Fryer Katherine; Campbell Ty; Cole Mary

来源：Public Health Nutrition, 2014, 17(5): 1114-1119.

DOI：10.1017/S1368980013000335

• Sodium
• Body weight status
• Blood pressure

Objective %26lt;br%26gt;The purpose was to examine the associations among body weight status, blood pressure and daily Na intake among grade 7 students from south-western Ontario, Canada. %26lt;br%26gt;Design %26lt;br%26gt;Cross-sectional. Data were collected using the Food Behaviour Questionnaire, including a 24 h diet recall. Measured height and weight were used to determine BMI. Blood pressure was taken manually using mercury sphygmomanometers. %26lt;br%26gt;Setting %26lt;br%26gt;Twenty-six schools in south-western Ontario, Canada. %26lt;br%26gt;Subjects %26lt;br%26gt;Grade 7 students (n 1068). %26lt;br%26gt;Results %26lt;br%26gt;Body weight status indicated 1 % were underweight, 56 % normal weight, 23 % overweight and 20 % were obese. Mean systolic blood pressure (SBP) and diastolic blood pressure (DBP) were 108 center dot 3 (sd 10 center dot 3) mmHg and 66 center dot 0 (sd 7 center dot 5) mmHg, respectively, and mean Na intake was 2799 (sd 1539) mg/d. Bivariate analyses suggested that SBP (P %26lt; 0 center dot 001) and DBP (P %26lt; 0 center dot 001) were significantly different by body weight status, yet no associations were observed for Na. Adjusted for gender, ethnicity and under-reporting, participants were more likely to be overweight/obese if they had higher SBP (v. lower: OR = 1 center dot 06, 95 % CI 1 center dot 05, 1 center dot 08, P %26lt; 0 center dot 001), higher DBP (v. lower: OR = 1 center dot 02, 95 % CI 1 center dot 00, 1 center dot 04, P = 0 center dot 043) and higher intakes of Na (3rd v. 1st quartile: OR = 1 center dot 72, 95 % CI 1 center dot 14, 2 center dot 59, P = 0 center dot 009; 4th v. 1st quartile: OR = 2 center dot 88, 95 % CI, 1 center dot 76, 4 center dot 73, P %26lt; 0 center dot 001). %26lt;br%26gt;Conclusions %26lt;br%26gt;High intakes of Na, coupled with high SBP and DBP, were associated with overweight and obesity status among the grade 7 sample from south-western Ontario, Canada.

• 出版日期2014-5