Table 5. Univariate correlations between SBP and DBP with life style related factors in obese children and adolescents.
| Predictor variables | SBP (mmHg) | DBP (mmHg) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Coefficient | p | 95% CI | R2 | Coefficient | p | 95% CI | R2 | ||
| BMI* | |||||||||
| BMI quartile 1 | Referent | ||||||||
| BMI quartile 2 | 3.93 | 0.014 | 0.79, 7.06 | 0.2080 | 1.50 | 0.197 | −0.78, 3.78 | 0.2040 | |
| BMI quartile 3 | 9.50 | < 0.001 | 6.81, 13.08 | 7.07 | < 0.001 | 4.79, 9.35 | |||
| BMI quartile 4 | 15.51 | < 0.001 | 12.39, 18.64 | 10.55 | < 0.001 | 8.28, 12.83 | |||
| Overweight/obesity | |||||||||
| Overweight | Referent | ||||||||
| Obesity | 1.24 | 0.430 | −1.84, 4.32 | 0.0015 | 0.54 | 0.636 | −1.70, 2.78 | 0.0005 | |
| Nutrition screening pattern | 3.61 | 0.066 | −0.24, 7.46 | 0.0080 | 0.54 | 0.706 | −2.27, 3.35 | 0.0003 | |
| Fruit consumption | |||||||||
| Rarely or never/day | Referent | ||||||||
| < 2 serving/day | 7.28 | 0.225 | −4.84, 19.05 | 0.0058 | 9.77 | 0.025 | 1.24, 18.29 | 0.0153 | |
| ≥ 2 serving/day | 8.42 | 0.149 | −3.03, 19.87 | 10.57 | 0.013 | 2.27, 18.86 | |||
| Vegetable consumption | |||||||||
| Rarely or never/day | Referent | ||||||||
| Vegetable < 3 serving/day | −0.26 | 0.955 | −9.56, 9.03 | 0.0002 | −0.24 | 0.943 | −7.01, 6.52 | 0.0000 | |
| Vegetable ≥ 3 serving/day | −0.60 | 0.897 | −9.74, 8.54 | −0.16 | 0.962 | −6.81, 6.49 | |||
| Dairy consumption | |||||||||
| Rarely or never/day | Referent | ||||||||
| < 3 serving/day | 5.97 | 0.227 | −4.66, 16.61 | 0.0128 | 4.22 | 0.284 | −3.51, 11.96 | 0.0138 | |
| ≥ 3 serving/day | 2.70 | 0.611 | −7.74, 13.14 | 1.73 | 0.655 | −5.86, 9.32 | |||
| Fast foods/junk foods consumption | |||||||||
| Almost every day | Referent | ||||||||
| 1–2 items/week | −1.04 | 0.673 | −5.92, 3.83 | 0.0033 | −0.08 | 0.965 | −3.63, 3.47 | 0.0012 | |
| Rarely | −2.24 | 0.322 | −6.69, 2.20 | −0.75 | 0.650 | −3.99, 2.49 | |||
| Meals/snacks | |||||||||
| ≤ 2 meals or snacks/day | Referent | ||||||||
| 3–4 meals or snacks/day | −4.85 | 0.206 | −12.39, 2.67 | 0.0043 | −3.22 | 0.248 | −8.71, 2.25 | 0.0053 | |
| ≥ 5 meals or snacks/day | −5.18 | 0.179 | −12.77, 2.39 | −2.18 | 0.436 | −7.70, 3.32 | |||
| Nutritional pattern rating | −2.90 | 0.268 | −0.80, 0.24 | 0.0029 | −0.06 | 0.740 | −0.43, 0.31 | 0.0003 | |
| Watching TV/PC | |||||||||
| > 2 hours/day | Referent | ||||||||
| About 2 hours/day | −3.32 | 0.050 | 6.65, 0.004 | 0.0120 | −2.47 | 0.045 | −4.90, −0.05 | 0.0095 | |
| < 2 hours/day | −2.04 | 0.147 | −4.80, 0.72 | −0.99 | 0.333 | −3.00, 0.01 | |||
| Physical activity | |||||||||
| No physical activity | Referent | ||||||||
| < 420 minutes/week | 4.05 | 0.024 | 0.53, 7.75 | 0.0171 | 2.87 | 0.028 | 0.31, 5.43 | 0.0169 | |
| ≥ 420 minutes/week | 1.01 | 0.573 | −2.53, 4.57 | 0.622 | 0.636 | −1.96, 3.20 | |||
Bold styled values indicate the statistically significnace.
BMI, body mass index; SBP, systolic blood pressure; DBP, diastolic blood pressure.
*BMI was categorized as quartile as follows: quartile 1, <22.20 kg/m2; quartile 2, 22.20–25.22 kg/m2; quartile 3, 25.22–28.79 kg/m2; and quartile 4, ≥ 28.79 kg/m2.