Table 4.

Estimated coefficients of the determinants of changes in BMI derived from the fixed-effects model

	Coefficient	95% CI	P value
Eating speed
Fast	Reference
Normal	−0.07	−0.10 to 0.05	<0.001
Slow	−0.11	−0.15 to 0.06	<0.001
Eating dinner within 2 hours before sleeping ≥3 times per week
Yes	Reference
No	−0.06	−0.08 to 0.04	<0.001
Snacking after dinner ≥3 times per week
Yes	Reference
No	−0.08	−0.11 to 0.06	<0.001
Skipping breakfast ≥3 times per week
Yes	Reference
No	0.00	−0.03 to 0.04	0.829
Alcohol consumption
Every day	Reference
Occasionally	−0.10	−0.13 to 0.06	<0.001
Rarely or never	−0.18	−0.22 to 0.13	<0.001
Inadequate sleep
Yes	Reference
No	0.03	0.01 to 0.05	0.001
Habitual smoker
Yes	Reference
No	0.23	0.20 to 0.27	0.363
Use of antidiabetic medication
No	Reference
Yes	−0.12	−0.14 to 0.10	0.069
Age	0.08	0.07 to 0.10	0.008
BMI in the previous check-up	0.09	0.07 to 0.10	<0.001

BMI, body mass index.