Table 5

Adjusted risk ratio for the risk factors for prehypertension and hypertension

PrehypertensionHypertension
RRR95% CIRRR95% CI
Age
 111(1.00 to 1.00)1(1.00 to 1.00)
 120.73(0.39 to 1.37)0.64(0.31 to 1.29)
 130.64(0.34 to 1.21)1.11(0.59 to 2.11)
 141.36(0.76 to 2.46)0.99(0.49 to 2.00)
 150.90(0.46 to 1.79)1.42(0.70 to 2.87)
 16–170.38*(0.15 to 0.93)0.99(0.45 to 2.22)
Sex
 Male1(1.00 to 1.00)1(1.00 to 1.00)
 Female1.09(0.74 to 1.61)1.15(0.77 to 1.73)
Location of school
 Rural1(1.00 to 1.00)1(1.00 to 1.00)
 Urban1.423(0.91 to 2.22)0.93(0.57 to 1.50)
BMI categories
 Normal1(1.00 to 1.00)1(1.00 to 1.00)
 Underweight0.70(0.29 to 1.65)
 Overweight1.94*(1.16 to 3.25)2.56***(1.49 to 4.40)
 Obese1.28(0.59 to 2.80)7.21***(4.09 to 12.70)
SES
 Low1(1.00 to 1.00)1(1.00 to 1.00)
 Middle1.07(0.68 to 1.68)1.02(0.62 to 1.66)
 High1.76(0.81 to 3.81)1.52(0.69 to 3.31)
Junk food
 No1(1.00 to 1.00)1(1.00 to 1.00)
 Yes0.62(0.37 to 1.02)1.04(0.56 to 1.92)
Added salt intake
 No1(1.00 to 1.00)1(1.00 to 1.00)
 Yes2.37***(1.54 to 3.63)4.90***(2.83 to 8.48)
Dietary pattern
 Vegetarian1.04(0.70 to 1.55)0.83(0.56 to 1.25)
 Eggetarian0.80(0.38 to 1.69)0.79(0.36 to 1.74)
Exercise
 No1(1.00 to 1.00)1(1.00 to 1.00)
 Yes0.63*(0.42 to 0.94)0.70(0.47 to 1.06)
  • Adjusted risk ratio for hypertension was estimated using multinomial logistic regression model and included age, sex, BMI and all other variables shown in the table. The goodness-of-fit test of the model was not significant (p=0.636) and the AIC value was 1777.9.

  • *P<0.01, **p<0.001, ***p<0.0001.

  • AIC, akaike information criterion; BMI, body mass index; RRR, relative risk ratio; SES, socioeconomic status.