Author's response to reviews Title: Effect of changes in a food frequency questionnaire: comparing data from two national dietary survey instruments among 12-month-old infants Authors:

Effect of changes in a food frequency questionnaire: comparing data from two national dietary survey instruments among 12-month-old infants

BACKGROUND National dietary surveys among Norwegian 12-months olds have been conducted twice: in 1999 and 2007. At both time-points diet were assessed by a semi-quantitative food frequency questionnaire (SFFQ) (the SFFQ-1999 and the SFFQ-2007). Modifications in the SFFQ-2007 compared to the SFFQ-1999 have been made; therefore, the objective of the present study has been to explore the comparabi...

Author's response to reviews Title: Relative validation of the KiGGS Food Frequency Questionnaire among adolescents in Germany Authors:

Effect of changes in an FFQ: comparing data from two national dietary survey instruments among 2-year-olds.

In the interpretation of dietary trends, it is important to consider the potential effect of modifications in the dietary assessment method. Therefore, our objective was to explore the comparability of data obtained at two time points by a semi-quantitative FFQ (SFFQ) which has had slight modifications over time. In the national dietary surveys among Norwegian 2-year-olds, diet was assessed by ...

Author's response to reviews Title: Prevalence and Predictors of 6-Month Exclusive Breastfeeding among Canadian Women: A National Survey Authors:

Development and Validation of a Food Frequency Questionnaire for Assessing Dietary Calcium in Children

Background and Objectives: This study aimed to develop and validate a food frequency questionnaire (FFQ) for measuring calcium intake in 9-13 years old children in Tehran, Iran. Materials and Methods: A 56-item FFQ containing main contributors of calcium in Iranian diet was designed. Criterion validity of the calcium specific FFQ was evaluated through comparing its result with five 24-h recall...