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Table 3 Linear Mixed Models for Substituting Awake Sedentary Time with Higher-intensity Physical Activity and Cardiometabolic Risk Factors

From: Sedentary patterns and cardiometabolic risk factors in Mexican children and adolescents: analysis of longitudinal data

 

WC (cm)

SBP (mm Hg)

DBP (mm Hg)

Log glucose (mg/dL)

Log TG (mg/dL)

Log HDL-C (mg/dL)

Log insulin (μIU/mL)

Log HOMA-IR

N = 530, # obs. = 926

N = 530, # obs. = 925

N = 530, # obs. = 925

N = 388, # obs. = 679

N = 388, # obs. = 679

N = 388, # obs. = 679

N = 388, # obs. = 679

N = 388, # obs. = 679

▪ 1 visit (n = 134,25.28%)

▪ 1 visit (n = 135,25.47%)

▪ 1 visit (n = 135,25.47%)

▪ 1 visit (n = 97,25.00%)

▪ 1 visit (n = 97,25.00%)

▪ 1 visit (n = 97,25.00%)

▪ 1 visit (n = 97,25.00%)

▪ 1 visit (n = 97,25.00%)

▪ 2 visits (n = 396,74.72%)

▪ 2 visits (n = 395,74.53%)

▪ 2 visits (n = 395,74.53%)

▪ 2 visits (n = 291,75.00%)

▪ 2 visits (n = 291,75.00%)

▪ 2 visits (n = 291,75.00%)

▪ 2 visits (n = 291,75.00%)

▪ 2 visits (n = 291,75.00%)

Crude modelsa

 5% of daily awake time spent on sedentary activity

Sedentary

Ref.

Light

β

1.26*

0.42

−0.72

−0.0002

0.0044

−0.0224

0.0358

0.0238

Back transformed β

–

–

–

−0.02%

0.44%

−2.22%

3.64%

2.41%

95% CI

(0.42, 2.10)

(−0.44, 1.29)

(−1.36, − 0.08)

(− 0.013, 0.0126)

(−0.04247, 0.0512)

(− 0.0415, − 0.0033)

(−0.0175, 0.0891)

(− 0.0335, 0.0811)

MVPA

β

−5.42**

−2.47*

−0.49

−0.0026

− 0.1028*

0.0101

− 0.0765

−0.1168*

Back transformed β

–

–

–

−0.26%

−9.77%

1.02%

−7.36%

−11.02%

95% CI

(−6.72, −4.12)

(−3.81, − 1.13)

(− 1.48, 0.49)

(− 0.0392, − 0.002)

(− 0.1711, − 0.0346)

(−0.0178, 0.0380)

(− 0.1543, 0.0013)

(− 0.2004, − 0.0333)

Adjusted modelsb,c

 5% of daily awake time spent on sedentary activity

Sedentary

Ref.

Light

β

0.25

0.68

−0.54

0.0032

0.0006

−0.0196

0.0198

0.0189

Back transformed β

–

–

–

0.32%

0.06%

−1.94%

2%

1.91%

95% CI

(−0.1, 0.6)

(−0.155, 1.51)

(−1.16, 0.07)

(− 0.0099, 0.0163)

(− 0.0469, 0.0481)

(−0.0388, − 0.0004)

(−0.0338, 0.0733)

(− 0.0388, 0.0765)

MVPA

β

1.35**

−0.86

0.42

−0.0083

−0.1053*

0.0195

−0.0873

− 0.0918

Back transformed β

–

–

–

−0.83%

−9.99%

1.97%

−8.36%

−8.77%

95% CI

(−1.91, −0.79)

(−2.19, 0.46)

(−0.56, 1.4)

(− 0.0275, 0.0108)

(− 0.1761, − 0.0345)

(−0.0094, 0.0485)

(− 0.1673, − 0.0073)

(−0.1778, − 0.0058)

  1. aModels includes percentage of light and percentage of MVPA as fixed effects and compound symmetry error matrix structure
  2. bModels additionally adjusted for the following fixed effects: mother’s enrollment in the calcium intervention study, mode of childbirth, parity status, child’s age, sex, total time of physical activity, and pubertal onset
  3. cWaist circumference models were additionally adjusted for body mass index
  4. * p < 0.00625
  5. ** p < 0.0001
  6. Back-transform β is expressed as a percentage of change
  7. Abbreviations: WC Waist circumference, SBP Systolic blood pressure, DBP Diastolic blood pressure, TG triglycerides, HDL-C High density lipoprotein cholesterol, HOMA-IR Homeostatic model assessment of insulin resistance
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International Journal of Behavioral Nutrition and Physical Activity

ISSN: 1479-5868

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