The Fussiness Score was developed by Keefe et al to quantify the level of fussiness shown by infants. Fussiness is the state of irritability shown by an infant without a readily identifiable cause.
Identifiable causes for fussiness include
(2) a wet diaper
(4) pain from an injury.
The average number of hours per day that the baby fusses or cries without apparent cause is recorded.
(1) amount of unexplained fussiness
(2) intensity of the fussiness
Scoring for each parameter is along a continuous spectrum from 0 to 6.
extreme or maximal
fussiness score =
= (points for unexplained fussiness) + (points for fussiness intensity)
• minimum fussiness score: 0
• maximum fussiness score: 12
A child is considered irritable if one or more of the following is present (Keefe 1998):
(1) amount of unexplained fussiness >= 3
(2) intensity of fussiness >= 3
(3) average hours of unexplained crying > 2.5 hours
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