Table 1.

Definition of maternal healthy lifestyle factors.

Lifestyle factor	Definition of healthy lifestyle factor
Cigarette smoking	No cigarette smoking during the past week
Body mass index	<25 kg/m2
Physical activity	≥150 min/week moderate intensity or ≥75 min/week vigorous intensity or combination
Dietary behavior	Satisfy 3–4 components ◆ Vegetables: ≥4 servings per day ◆ Fruits: ≥3 servings per day ◆ Sugar-sweetened beverages: ≤4.0 servings per week ◆ Total meat consumption: ≤3 servings per week
Sleep duration	7~9 h/day
Alcohol consumption	No alcohol consumption during the past week