Association of napping and night-time sleep with impaired glucose regulation, insulin resistance and glycated haemoglobin in Chinese middle-aged adults with no diabetes: a cross-sectional study.

ABSTRACT:

Objective

To assess associations between napping and night-time sleep duration with impaired glucose regulation, insulin resistance (IR) and glycated haemoglobin (HbA1c).

Design

Cross-sectional study.

Setting

Fujian Province, China, from June 2011 to January 2012.

Participants

This study enrolled 9028 participants aged 40-65 years. Data of 7568 participants with no diabetes were included for analysis. Type 2 diabetes was defined applying WHO criteria.

Outcome measures

Participants' daytime napping and night-time sleep duration data were collected using a standardised self-reported Chinese-language questionnaire about sleep frequency and quality. Anthropometric and laboratory parameters were also measured. IR was defined as a HOMA-IR index value >2.50. OR

SUBMITTER: Baoying H 

PROVIDER: S-EPMC4120253 | biostudies-literature | 2014 Jul

REPOSITORIES: biostudies-literature