Table 4 Association between life style factors and systolic (SBP) and diastolic (DBP) blood pressure (mm Hg) in boys.
| Â | Â | SBP, mm Hg | DBP, mm Hg | ||||
|---|---|---|---|---|---|---|---|
Variables | N | Mean | (95% CI) | P-trend | Mean | (95% CI) | P-trend |
Regularity of breakfast* | Â | Â | Â | Â | Â | Â | Â |
   Every day | 2840 | 125.2 | 124.8–125.6 | -- | 65.0 | 64.7–65.2 | -- |
   4–6 days per week | 404 | 125.7 | 124.6–126.8 | -- | 65.8 | 65.0–66.5 | -- |
   1–3 days per week | 322 | 124.8 | 123.6–126.1 | -- | 65.8 | 65.0–66.7 | -- |
   Less than 1 day per week | 273 | 125.1 | 123.7–126.5 | 0.78 | 66.0 | 65.0–66.9 | 0.005 |
Consumption of sweets* | Â | Â | Â | Â | Â | Â | Â |
   Once per day or more | 536 | 123.3 | 122.3–124.2 | -- | 64.6 | 63.9–65.2 | -- |
   Every week, but not every day | 2595 | 125.3 | 124.8–125.7 | -- | 65.2 | 64.9–65.5 | -- |
   Less than once per week | 688 | 126.8 | 125.9–127.6 | <0.001 | 65.5 | 65.0–66.1 | 0.03 |
Consumption of vegetables* | Â | Â | Â | Â | Â | Â | Â |
   Once per day or more | 1315 | 125.0 | 124.4–125.6 | -- | 65.1 | 64.6–65.5 | -- |
   Every week, but not every day | 1700 | 125.3 | 124.8–125.9 | -- | 65.2 | 64.8–65.6 | -- |
   Less than once per week | 788 | 125.6 | 124.8–126.4 | 0.25 | 65.4 | 64.9–66.0 | 0.29 |
Physical activity* | Â | Â | Â | Â | Â | Â | Â |
   4 days or more per week | 1275 | 124.6 | 124.0–125.3 | -- | 64.6 | 64.2–65.0 | -- |
   2–3 days per week | 1483 | 125.5 | 124.9–126.1 | -- | 65.3 | 64.9–65.7 | -- |
   1 day or less per week | 1129 | 125.3 | 124.6–126.0 | 0.14 | 65.6 | 65.2–66.1 | <0.001 |
Smoking status* | Â | Â | Â | Â | Â | Â | Â |
   Non smokers | 3129 | 125.4 | 125.0–125.8 | -- | 65.3 | 65.0–65.6 | -- |
   Smokers | 702 | 123.9 | 123.1–124.8 | 0.003 | 64.6 | 64.0–65.2 | 0.04 |