Skip to main content

Table 3 Estimated mean and 95% confidence intervals of latent growth parameters by parental clusters, gender and whole population

From: Longitudinal association between body mass index and physical activity among adolescents with different parental risk: a parallel latent growth curve modeling approach

 

Low risk

High risk

Male

Female

All population

Estimate

95% CI

Estimate

95% CI

Estimate

95% CI

Estimate

95% CI

Estimate

95% CI

Outcome: BMI

 Intercept (BMI)

21.27

(20.98, 21.55)

22.16

(21.81, 22.50)

21.78

(21.42, 22.13)

21.63

(21.35, 21.92)

21.65

(21.42, 21.87)

 Slope (BMI)

1.11

(1.03, 1.18)

1.12

(1.03, 1.22)

1.39

(1.32, 1.48)

0.9

(0.82, 0.98)

1.12

(1.06, 1.18)

 Cov(BMI)

−0.30

(−0.72, 0.11)

−0.17

(−0.76, 0.40)

−0.46

(−1.07, 0.13)

−0.19

(−0.58, 0.19)

−0.23

(−0.59, 0.12)

Outcome: PA

 Intercept (PA)

−0.04

(−0.11, − 0.00)

0.01

(− 0.08, 0.09)

0.21

(0.12, 0.29)

−0.24

(− 0.3, − 0.19)

0.72

(0.23, 1.22)

 Slope (PA)

0.001

(−0.03, 0.02)

−0.02

(− 0.05, 0.01)

−0.01

(− 0.04, 0.02)

−0.004

(− 0.03, 0.02)

−0.05

(− 0.26, 0.15)

 Cov (PA)

−0.05

(− 0.10, 0.03)

−0.01

(− 0.07, 0.05)

−0.04

(− 0.11, 0.03)

−0.03

(− 0.06, 0.01)

−0.03

(− 0.08, 0.01)

Parallel

Cross-sectional associationc

  Intercept (PA) → intercept (BMI)

0.00

(−0.02, 0.02)

0.01

(−0.01, 0.03)

−0.01

(− 0.03, 0.007)

0.02

(− 0.01, 0.0.03)

0.00

(− 0.01, 0.02)

Prospective associationd

  Intercept (PA) →slope (BMI)

0.27

(0.14, 0.41)

0.08

(−0.07, 0.24)

0.09

(−0.07, 0.25)

0.08

(−0.03, 0.18)

0.18

(0.08, 0.28)

Parallel associatione

  Slope (PA)→ slope (BMI)

−0.07

(−0.13, − 0.01)

−0.03

(− 0.08, 0.02)

−0.06

(− 0.11, − 0.01)

−0.04

(− 0.09, 0.005)

−0.05

(− 0.09, − 0.01)

  1. The estimates are unstandardized regression coefficients; P-value < 0.05 is statistically significant
  2. Time scale is per phase (every 3 years)
  3. c: the estimates can be interpreted as changes in baseline BMI (kg_m2/phase) by each unit increase in baseline PA
  4. d: the estimates can be interpreted as changes in the growth rate of BMI (kg_m2/phase) by each unit increasein baseline PA
  5. e: the estimates can be interpreted as changes in the growth rate of BMI (kg_m2/phase) by each unit increasein growth rates of PA