The amount (minutes/day; median with range) of fussing and crying, and total distress reported by parents during the 7th and 12th weeks of life.

*Fussing was defined as a state of irritability, “not quite crying but not awake and content”.†Other cry was defined as crying responsive to intervention (feeding, change of diaper, carrying, sucking a pacifier); colic-type cry was defined as a cry not responsive to such intervention.‡The sum of colic type, other cry, and fussing reported by parents.