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Table 3 Characteristics of the study participants according to BMI categories

From: Association between obesity and high blood pressure among Lithuanian adolescents: a cross-sectional study

 

Normal weight

Overweight

Obesity

p*

Boys

(n = 2,901)

(n = 499)

(n = 94)

 

Age (years)

13.0 (12.0–14.0)

13.0 (12.0–14.0)a

13.0 (12.0–14.0)

<0.001

Weight (kg)

52.0 (43.8–60.0)

68.0 (60.0–75.0)a

83.5 (72.5–90.4)a, b

<0.001

Height (cm)

167.0 (158.0–175.0)

168.0 (160.0–176.0)a

167.8 (160.0–175.0)

0.037

BMI (kg/m2)

18.61 ± 2.00

23.90 ± 1.57a

29.60 ± 2.91a,b

<0.001

WC (cm)

67.0 (63.0–71.0)

77.0 (72.0–82.0)a

89.0 (82.0–96.0)a, b

<0.001

SBP (mmHg)

116.3 (109.3–130.7)

128.7 (116.0–139.3)a

131.2 (118.6–140.8)a

<0.001

DBP (mmHg)

64.0 (59.3–69.3)

66.0 (61.3–71.7)a

69.0 (63.3–75.0)a, b

<0.001

Girls

(n = 3,471)

(n = 406)

(n = 86)

 

Age (years)

13.0 (12.0–14.0)

13.0 (12.0–14.0)

13.0 (12.0–14.0)

0.06

Weight (kg)

50.0 (44.0–55.0)

66.0 (60.0–70.0)a

80.0 (75.8–89.0)a, b

<0.001

Height (cm)

163.0 (158.0–168.0)

164.0 (159.0–169.0)

163.0 (160.0–168.0)

0.284

BMI (kg/m2)

18.6 (17.0–20.1)

24.4 (23.5–25.5)a

29.8 (28.6–32.2)a, b

<0.001

WC (cm)

63.0 (60.0–67.0)

74.0 (70.0–79.0)a

87.0 (81.0–90.0)a, b

<0.001

SBP (mmHg)

113.0 (106.7–119.0)

119.0 (112.3–130.1)a

125.5 (117.0–135.0)a, b

<0.001

DBP (mmHg)

65.0 (60.3–70.3)

67.8 (63.0–73.7)a

70.0 (64.6–75.5)a, b

<0.001

All participants

(n = 6,372)

(n = 905)

(n = 180)

 

Age (years)

13.0 (12.0–14.0)

13.0 (12.0–14.0)a

13.0 (12.0–14.0)a

<0.001

Weight (kg)

50.0 (44.0–57.0)

67.0 (60.0–73.0)a

82.0 (74.0–89.0)a, b

<0.001

Height (cm)

164.0 (158.0–171.0)

165.0 (159.0–172.0)a

165.0 (160.0–172.0)

<0.001

BMI (kg/m2)

18.6 (17.1–20.1)

24.1 (23.0–25.3)a

29.3 (28.1–31.6)a, b

<0.001

WC (cm)

65.0 (61.0–69.0)

76.0 (71.0–80.0)a

87.0 (81.3–93.8)a, b

<0.001

SBP (mmHg)

114.7 (107.7–124.0)

123.7 (114.7–135.3)a

128.5 (117.8–138.6)a, b

<0.001

DBP (mmHg)

64.7 (60.0–70.0)

67.0 (62.3–72.5)a

69.7 (64.0–75.3)a, b

<0.001

  1. BMI – body mass index, SD – standard deviation, WC – waist circumference, SBP – systolic blood pressure, DBP – diastolic blood pressure.
  2. Values are presented as mean ± SD or median (25th–75th percentiles).
  3. aSignificantly different (p < 0.05) from normal weight participants.
  4. bSignificantly different (p < 0.05) from overweight participants.
  5. *Differences between three groups.