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Table 4 Association of dietary pattern scores with anthropometry and blood pressure data

From: Nutrition transition among adolescents of a south-Mediterranean country: dietary patterns, association with socio-economic factors, overweight and blood pressure. A cross-sectional study in Tunisia

  Modern dietary pattern score Meat-fish dietary pattern score
  Mean (s.e.) or % P-value1 Mean (s.e.) or % P-value1
  1st tertile 2nd tertile 3rd tertile Model 1 Model 2 Model 3 1st tertile 2nd tertile 3rd tertile Model 1 Model 2 Model 3
Male n = 170 n = 133 n = 94     n = 127 n = 143 n = 127    
Body Mass Index (kg/m2) 19.7(0.2) 21.7(0.3) 20.7(0.4) <0.0001 <0.0001 <0.0001 20.1(0.3) 20.3(0.3) 21.6(0.4) 0.0035 0.092 0.059
Overweight (%) 6.7% 23.0% 20.4% 0.0026 0.0051 0.014 16.0% 11.0% 23.4% 0.063 0.23 0.31
Waist Circumference (cm) 71.0(0.6) 78.2(1.1) 77.1(0.8) <0.0001 <0.0001 <0.0001 71.0(0.6) 78.2(1.1) 77.1(0.8) <0.0001 <0.0001 <0.0001
Systolic blood pressure (mm hg) 113.9(0.9) 116.4(1.2) 112.7(1.2) 0.11 0.13 0.10 113.0(0.8) 113.9(1.1) 116.1(1.2) 0.098 0.40 0.43
Diastolic blood pressure (mm hg) 66.0(0.8) 69.1(0.7) 68.4(0.9) 0.022 0.044 0.073 66.7(0.8) 67.6(0.7) 69.1(0.7) 0.045 0.47 0.36
High blood pressure (%) 43.2% 53.0% 40.7% 0.15 0.28 0.23 44.3% 42.4% 50.5% 0.47 0.65 0.40
Hypertension (%) 3.1% 7.8% 2.9% 0.25 0.30 0.038 1.4% 4.8% 7.7% 0.11 0.16 0.15
Female n = 263 n = 165 n = 108     n = 193 n = 167 n = 176    
Body Mass Index (kg/m2) 21.9(0.2) 21.7(0.3) 22.1(0.4) 0.77 0.65 0.68 22.2(0.3) 21.4(0.3) 22.1(0.3) 0.078 0.056 0.084
Overweight (%) 16.6% 20.2% 21.8% 0.58 0.51 0.41 20.7% 18.0% 19.2% 0.83 0.81 0.96
Waist Circumference (cm) 71.2(0.6) 72.7(0.9) 73.2(0.8) 0.083 0.10 0.15 71.7(0.7) 71.6(0.7) 73.3(0.7) 0.13 0.18 0.21
Systolic blood pressure (mm Hg) 113.3(0.7) 110.6(0.9) 108.9(1.0) 0.0028 0.0011 0.22 110.9(0.9) 111.8(0.8) 110.9(0.9) 0.64 0.50 0.57
Diastolic blood pressure (mm Hg) 66.1(0.7) 66.8(0.9) 66.2(0.8) 0.77 0.95 0.30 65.6(0.8) 66.5(0.7) 67.0(0.8) 0.43 0.92 0.87
High blood pressure (%) 39.3% 26.9% 21.4% 0.028 0.0085 0.31 32.2% 27.8% 30.0% 0.70 0.35 0.32
Hypertension (%) 7.0% 7.6% 0.0% 0.00412 2 2 6.3% 3.0% 6.2% 0.44 0.38 0.38
  1. 1- Null hypothesis of no difference between tertiles of dietary pattern: general linear model for interval response variables, logistic regression for binary variables (complete case analysis n = 933).
  2. Model 1: unadjusted estimates (response variable as in column 1, regressor is categorical variable for dietary pattern in tertiles).
  3. Model 2: for BMI, overweight and WC response variables: adjusted for age, total energy intake, physical activity level (% of low, medium and high intensity daytime activities); for blood pressure (systolic and diastolic), high blood pressure and hypertension response variables: adjusted also for anthropometry (BMI and WC).
  4. Model 3: as in model 2 but in addition adjusted also for socio-economic variables: economic level of household, profession of father, education of father, mother working outside the home, education of mother, whether or not subject is attending school at time of survey.
  5. 2- For females, P-value for unadjusted association is from chi-square test (also taking into account sampling design), as no estimates could be obtained for logistic regression models due to observed null prevalence in third tertile (and thus no raw and/or adjusted p-values).