. 2012 Feb 3;12:98. doi: 10.1186/1471-2458-12-98

Table 3.

Adjusted associations of socio-demographic and lifestyle factors, Body Mass Index and Waist Circumference with blood pressure

	Boys(n = 1221¹)				Girls(n = 1484¹)
	Elevated BP²		Hypertension		Elevated BP²		Hypertension
	Adjusted OR³ (CI95%)	P⁴	Adjusted OR³ (CI95%)	P⁴	Adjusted OR³ (CI95%)	P⁴	Adjusted OR³ (CI95%)	P⁴
Area
Urban	1	0.49	1	0.22	1	0.021	1	0.081
Rural	1.1 (0.8-1.5)		1.6 (0.8-3.5)		1.5 (1.1-2.1)		1.6 (0.9-2.8)
Household's economic level
Low	1		1		1		1
Intermediate	0.8 (0.6-1.1)	0.29	1.6 (0.7-3.7)	0.27	0.9 (0.7-1.3)	0.52	0.8 (0.5-1.5)	0.62
High	1.0 (0.7-1.5)		2.1 (0.8-5.5)		0.8 (0.5-1.2)		0.6 (0.2-1.8)
Attending school
Yes	1	0.065	1	0.32	1	0.033	1	0.088
No	1.4 (1.0-2.0)		1.5 (0.7-3.4)		1.4 (1.0-1.8)		1.8 (0.9-3.5)
Proportion of low physical activity
1^sttertile (low)	1		1		1		1
2^ndtertile (middle)	1.2 (0.9-1.6)	0.35	2.3 (1.0-4.9)	0.072	1.1 (0.8-1.6)	0.054	0.7 (0.3-1.4)	0.075
3^rdtertile (high)	1.3 (0.9-1.8)		2.8 (1.1-7.0)		1.4 (1.0-1.9)		1.4 (0.7-2.9)
Perceived stress
1^sttertile (low)	1		1		1		1
2^ndtertile (middle)	1.0 (0.7-1.4)	0.88	1.1 (0.5-2.2)	0.45	1.1 (0.8-1.6)	0.54	0.7 (0.3-1.3)	0.25
3^rdtertile (high)	0.9 (0.7-1.3)		0.7 (0.3-1.6)		1.0 (0.7-1.4)		1.1 (0.6-2.0)
Body Mass Index
No excess weight	1		1		1		1
Overweight	2.0 (1.3-2.9)	0.0014	0.9 (0.4-2.4)	0.012	1.5 (1.1-2.1)	0.0028	2.1 (1.0-4.3)	0.0017
Obesity	2.1 (1.0-4.2)		3.5 (1.4-8.9)		2.3 (1.3-3.9)		5.4 (2.2-13.4)
Waist circumference
1^sttertile	1		1		1		1
2^ndtertile	1.7 (1.3-2.3)	< 10^-4	0.5 (0.2-1.7)	0.0046	1.6 (1.2-2.1)	0.0001	1.0 (0.4, 2.2)	0.50
3^rdtertile	2.8 (1.9-4.2)		2.7 (1.1-6.6)		2.1 (1.5-3.0)		1.5 (0.7-3.2)

1-Complete case analysis

2- Blood pressure

3- OR: Odds-Ratio, adjusted for age and all the variables in the first column

4- Adjusted for age and all the variables in the first column