Validity and reliability of a food frequency questionnaire for assessing dietary intake among Shanghai residents.

ABSTRACT:

Background

Few localized food frequency questionnaires (FFQ) have been developed and used in Chinese nutrition surveys despite China's large population and diverse dietary habits.

Method

We analyzed data collected in two waves (six months apart) of the Shanghai Diet and Health Study in 2012-2013, from 1623 Shanghai residents (798 men and 825 women) older than 18 years. The results of 3-day 24-h dietary recalls (HDR) plus condiment weighing were used to evaluate the validity and reliability of the SDHS FFQ.

Results

The median and first and third quartiles for energy intake (in kcal) derived from the FFQ1 and FFQ2 were 1566.5 (1310.1-1869.6) and 1561.9 (1280.2-1838.4), respectively, of which protein (in g) was 54.3 (42.5-65.8) and 52.9 (42.4-64.5), fat (in g) was 49.8 (

SUBMITTER: Zang J 

PROVIDER: S-EPMC6533674 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature