The descriptive epidemiology of sitting among US adults, NHANES 2009/2010

Deirdre M. Harrington, Tiago V. Barreira, Amanda E. Staiano, Peter T. Katzmarzyk

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)
2 Downloads (Pure)


Objectives: Using NHANES 2009/2010, to describe the amount of time a representative sample of the U.S. population spends sitting by age, sex, ethnicity, education, and body mass index. Design: Cross-sectional analysis. Methods: Participants (n= 5911, ≥20 years) self-reported demographic variables and the amount of time they spend sitting on a typical day. Body mass index was calculated from measured height and weight. Results: Mean self-reported sitting time was 285. min/day for males and 281. min/day for females. Mexican-Americans reported sitting less than both non-Hispanic Whites and non-Hispanic Blacks (all p <0.0001). Non-Hispanic White males reported sitting more than non-Hispanic Black males, while Non-Hispanic White females reported sitting more than Other Hispanic females (both p <0.0001). No significant differences were found between sexes in any age group. There was a trend for increased sitting time with increasing age for females (p for trend = 0.0045), for all Mexican-American and Hispanic participants and non-Hispanic Black males (all p ≤ 0.006) and with increasing education (p for trend <0.0001). At the College Graduate level, females reported sitting less than males (p < 0.0001). Obese females reported sitting more than normal weight and overweight females (p = 0.0008). There were no significant differences in sitting time by body mass index for males. Conclusions: Self-reported sitting time differed by ethnicity, age group, education and body mass index but there was no overall difference by sex. These results represent the most up to date prevalence of self-reported sitting for the US adult population. Certain groups should be targeted to reduce sitting time, for example those with higher educational attainment and obese females.
Original languageEnglish
Pages (from-to)371-375
Number of pages5
JournalJ. Sci. Med. Sport
Issue number4
Early online date8 Aug 2013
Publication statusPublished - 1 Jul 2014


  • body mass index
  • ethnicity
  • sedentary
  • self-report
  • adult
  • aged
  • anthropometry
  • article
  • body mass
  • controlled study
  • cross-sectional study
  • demography
  • educational status
  • female
  • groups by age
  • health survey
  • Hispanic
  • human
  • major clinical study
  • male
  • Mexican American
  • obesity
  • physical activity
  • prevalence
  • questionnaire
  • self report
  • sex difference
  • sitting
  • sitting time
  • time
  • United States
  • African American
  • age
  • body posture
  • caucasian
  • epidemiology
  • ethnology
  • middle aged
  • nutrition
  • sedentary lifestyle
  • statistics and numerical data
  • young adult


Dive into the research topics of 'The descriptive epidemiology of sitting among US adults, NHANES 2009/2010'. Together they form a unique fingerprint.

Cite this