Are there any reliable data on how often colic occurs in exclusively breastfed babies?  I'm especially interested in data based on babies having crying spells for at least three hours daily, at least three times a week as the 'definition' of colic.  
I don't get many questions about colic since I work mainly with babies under a week old, but I have the impression that the diagnostic criteria used where I live are a bit fuzzy, and that a lot of unhappiness in babies that gets called colic here is due to an identifiable cause such as 'not getting fed when they are hungry' or 'not getting held when they long for comfort'.  

Rachel Myr
Kristiansand, Norway

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