Elevated blood pressure among primary school children in Dar es salaam, Tanzania: prevalence and risk factors

BMC Pediatrics

Table 3 Relationship between age, gender, body mass index and sociodemographic factors with prevalence of hypertension among primary school children in Dar es Salaam, Tanzania

Variable	Unadjusted RR (95% CI)	P value	Adjusted RR^a (95% CI)	P value
Age
≤ 10 years	Ref		Ref
> 10 years	5.46 (1.60–8.62)	0.0067	3.63 (1.03–7.82)	0.0450
Gender
Girls	Ref		Ref
Boys	1.08 (0.70–1.67)	0.7318	1.07 (0.70–1.61)	0.7604
BMI (kg/m²)
Underweight	1.07 (0.52–2.19)		1.22 (0.59–2.51)
Normal	Ref		Ref
Overweight	1.21 (0.14–6.46)	0.8602	1.82 (0.21–5.73)	0.5885
Obese	1.29 (0.07–2.87)		2.21 (0.12–3.67)
Place of residence
Rural	Ref		Ref
Urban	1.44 (0.59–3.53)	0.4250	0.99 (0.37–2.61)	0.9795
Number of adults in family
Less than 6 adults	Ref		Ref
6 and above adults	0.94 (0.39–2.28)	0.8909	1.13 (0.47–2.74)	0.7817
Number of children
Less than 3 children	Ref		Ref
3 and above children	0.43 (0.18–1.03)	0.0581	0.47 (0.19–1.18)	0.1076
Pocket money for school
≤ 500 Tanzanian shillings	Ref		Ref
> 500 Tanzanian shillings	1.49 (0.59–3.73)	0.3936	0.98 (0.39–2.47)	0.9673

RR Risk Ratio, BMI Body Mass Index, CI Confidence interval
^aRisk ratio adjusted for age, gender, place of residence, BMI, number of adults and children in the family, pocket money and BMI category

ISSN: 1471-2431