Hi Heather
I have just had a look at the survey items and they’re pretty robust (At what age was child first fed infant formula?  At what age was child first fed anything other than breastmilk or infant formula?).  The prevalence of exclusive breastfeeding will be somewhat overestimated (but the error is systematic so the trends between surveys are valid) because mothers tend to round up to the next significant age interval when asked to recall important childhood events. 15 and a half weeks is likely to be reported as 4 months, for example.  There is much discussion of the usefulness of EBF AT six months as an indicator, since recommended practice is to introduce solids around 6 six months.  TO 6 months is better and AT 5 months probably the best indicator.\
Cheers
NINA BERRY PhD

> On 23 Oct 2014, at 2:50 am, heather <[log in to unmask]> wrote:
> 
> A colleague has sent this:
> 
> http://www.cdc.gov/breastfeeding/pdf/2014breastfeedingreportcard.pdf
> 
> How robust is the collection of the data?


             ***********************************************

Archives: http://community.lsoft.com/archives/LACTNET.html
To reach list owners: [log in to unmask]
Mail all list management commands to: [log in to unmask]
COMMANDS:
1. To temporarily stop your subscription write in the body of an email: set lactnet nomail
2. To start it again: set lactnet mail
3. To unsubscribe: unsubscribe lactnet
4. To get a comprehensive list of rules and directions: get lactnet welcome