Table 2.
Study characteristics by BMI trajectory in girls: The Birth to Twenty Cohort
| Normal weight (n = 717) | Trajectory 2 (n = 142) | Trajectory 3 (n = 45) | Trajectory 4 (n = 43) | P value | |
|---|---|---|---|---|---|
| Study characteristics | |||||
| Birth weight (kg) | 3.0 (0.5) | 3.0 (0.5) | 3.0 (0.5) | 3.3 (0.5) | 0.01* |
| Height at 18 years (cm) | 159.7 (6.2) | 158.4 (5.1) | 157.3 (6.6) | 159.3 (6.1) | 0.03* |
| SBP at 18 years (mm Hg) | 114.3 (9.6) | 116.0 (9.5) | 117.9 (11.7) | 120.1 (11.3) | 0.00*** |
| DBP at 18 years (mm Hg) | 71.5 (8.3) | 72.8 (8.1) | 75.8 (12.7) | 75.8 (9.0) | 0.00*** |
| MAP at 18 years (mm Hg) | 85.8 (7.9) | 87.2 (7.8) | 89.8 (11.8) | 90.6 (8.9) | 0.00*** |
| Elevated BP n (%) | 187 (28.5) | 28 (31.1) | 17 (43.6) | 18 (46.1) | 0.03* |
For girls: Trajectory 2 = Late Onset Overweight, Trajectory 3 = Early Onset Obese to Overweight, Trajectory 4 = Early Onset Obese to Morbidity Obese
Summary statistics presented as mean (±standard deviation) otherwise stated
*P < 0.05; **P < 0.01; ***P < 0.001
ANOVA and chi square test were conducted to describe the study characteristics differences in BMI trajectories
Percentages may not add up to 100 % due to rounding