TABLE 3.
Associations between sedentary time and health indicators among Mexican preschoolers
| Full sample (n = 400) | Girls (n = 197) | Boys (n = 203) | ||||
|---|---|---|---|---|---|---|
| βa (95% CI) | R2 | βa (95% CI) | R2 | βa (95% CI) | R2 | |
| Model 1b | ||||||
| Body fat (%) | 0.705 (0.118, 1.29) | 0.053 | 0.123 (−0.700, 0.947) | 0.004 | 1.379 (0.535, 2.223) | 0.062 |
| Waist circumference (cm) | 0.096 (−0.395, 0.587) | 0.058 | −0.191 (−0.914, 0.533) | 0.043 | 0.417 (−0.251, 1.085) | 0.094 |
| BMI z-score | 0.003 (−0.102, 0.109) | 0.003 | −0.094 (−0.232, 0.043) | 0.021 | 0.112 (−0.047, 0.272) | 0.025 |
| Glycated haemoglobin (%) | 0.034 (−0.005, 0.072) | 0.035 | 0.051 (−0.001, 0.104) | 0.060 | 0.015 (−0.043, 0.075) | 0.016 |
| Glucose (mg/dL) | 1.012 (−0.439, 2.462) | 0.047 | 0.725 (−1.227, 2.677) | 0.061 | 1.443 (−0.798, 3.683) | 0.032 |
| Triglycerides (mg/dL) | 0.043 (−0.003, 0.090) | 0.039 | 0.027 (−0.027, 0.082) | 0.069 | 0.068 (−0.010, 0.145) | 0.057 |
| Total cholesterol (mg/dL) | −0.685 (−3.749, 2.379) | 0.033 | 1.608 (−3155, 6.371) | 0.025 | −2.704 (−6.641, 1.232) | 0.072 |
| HDL cholesterol (mg/dL) | −0.241 (−1.296, 0.813) | 0.023 | 0.256 (−1.196, 1.708) | 0.015 | −0.579 (−2.144, 0.987) | 0.075 |
| LDL cholesterol (mg/dL) | −1.693 (−4.391, 1.005) | 0.057 | 0.887 (−3.082, 4.855) | 0.040 | −4.363 (−8.100, −0.626) | 0.079 |
| Systolic pressure (mm Hg) | −0.018 (−0.752, 0.717) | 0.131 | 0.856 (−0.205, 1.920) | 0.230 | −0.793 (−1.774, 0.324) | 0.215 |
| Diastolic pressure (mm Hg) | −0.136 (−0.759, 0.486) | 0.140 | −0.153 (−1.062, 0.756) | 0.209 | 0.019 (−0.873, 0.835) | 0.102 |
| Leptin (ng/mL) | −0.011 (−0.083, 0.062) | 0.313 | −0.031 (−0.130, 0.069) | 0.365 | 0.024 (−0.083, 0.131) | 0.256 |
| Adiponectin (ng/mL) | 751.4 (−68.4, 1571.1) | 0.035 | 1088.6(−128.12305.4) | 0.024 | 371.4 (−128.1, 2305.4) | 0.024 |
| Model 2c | ||||||
| Body fat (%) | 0.551 (−0.154, 1.257) | 0.054 | 0.170 (−0.764, 1.105) | 0.004 | 1.111 (0.019, 2.203) | 0.065 |
| Waist circumference (cm) | 0.236 (−0.351, 0.8224) | 0.060 | 0.071 (−0.745, 0.887) | 0.053 | 0.457 (−0.399, 1.313) | 0.094 |
| BMI z-score | 0.044 (−0.082, 0.169) | 0.006 | −0.015 (−0.169, 0.139) | 0.045 | 0.121 (−0.083, 0.326) | 0.025 |
| Glycated haemoglobin (%) | 0.047 (0.000, 0.094) | 0.038 | 0.057 (−0.005, 0.118) | 0.061 | 0.033 (−0.042, 0.108) | 0.020 |
| Glucose (mg/dL) | 0.764 (−0.998, 2.525) | 0.048 | 0.711 (−1.557, 2.980) | 0.061 | 0.,937 (−1.913, 3.786) | 0.034 |
| Triglycerides (log mg/dL) | 0.051 (−0.005, 0.108) | 0.039 | 0.027 (−0.036, 0.090) | 0.069 | 0.094 (−0.004, 0.193) | 0.062 |
| Total cholesterol (mg/dL) | −1.133 (−4.855, 2.588) | 0.034 | −0.025 (−5.488, 5.538) | 0.033 | −2.162 (−7.173, 2.850) | 0.073 |
| HDL cholesterol (mg/dL) | −0.396 (−1.675, 0.883) | 0.024 | 0.332 (−1.356, 2.020) | 0.015 | −1.171 (−3.155, 0.814) | 0.080 |
| LDL cholesterol (mg/dL) | −2.243 (−5.516, 1.029) | 0.059 | −0.699 (−5.284, 3.885) | 0.051 | −4.160 (−8.910, 0.590) | 0.079 |
| Systolic pressure (mm Hg) | 0.336 (−0.543, 1.215) | 0.136 | 0. 880 (−0.327, 2.087) | 0.230 | −0.321 (−1.569, 0.926) | 0.097 |
| Diastolic pressure (mm Hg) | 0.145 (−0.600, 0.891) | 0.144 | 0.032 (−1.000, 1.062) | 0.212 | 0.319 (−0.768, 1.407) | 0.107 |
| Leptin (ng/mL) | −0.005 (−0.093,0.083) | 0.313 | −0.043 (−0.159, 0.073) | 0.365 | 0.056 (−0.078, 0.191) | 0.259 |
| Adiponectin (ng/mL) | 688.2 (−311.1, 1687.6) | 0.036 | 395.7 (−1012.51803.8) | 0.047 | 992.0 (−442.1, 2426.0) | 0. 091 |
Notes: Significant (P < .05) differences are presented in bold. Sample sizes may vary according to the outcome variable.
Abbreviations: CI, confidence interval; HDL, high-density lipoprotein; LDL, low-density lipoprotein.
a
Beta values represent the change associated with a 60-minute increase in sedentary time.
b
Model 1 adjusted for child’s sex, age, percentage of body fat (for non-body composition outcomes), daily energy intake, monitor wear time and household socioeconomic status.
c
Model 2 additionally adjusted for moderate to vigorous physical activity.