Metabolic Equivalent of Task Values for Activities in American Time Use Survey and 2002 Census Occupational Classification System


Overview

This webpage provides the Metabolic Equivalent of Task (MET) values for activities in the American Time Use Survey (ATUS) and the 2002 Census Occupational Classification System (OCS). It serves as appendices to the following papers:

For ATUS activities

Tudor-Locke C, Washington TL, Ainsworth BE, Troiano RP. Linking the American Time Use Survey (ATUS) and the Compendium of Physical Activities: methods and rationale [PDF - 292 KB]. J Phys Act Health 2009 May;6(3):347-53.

For OCS activities

Tudor-Locke C, Ainsworth BE, Washington TL, Troiano R. Assigning metabolic equivalent values to the 2002 census occupational classification system [PDF - 2.18 MB]. J Phys Act Health. 2011 May;8(4):581-6.

This webpage contains Tables 3, 4, and 5 from the 2009 publication on ATUS activities, and Tables 3 through 24 from the 2011 publication on OCS activities. Tables 1 and 2 of both publications remain within the articles themselves. Finally, corrections have been made to these tables, and have been noted below.

Using the MET Values


MET values for activities in American Time Use Survey (ATUS)


View the tables with MET values for ATUS activities
Download the ATUS tables or SAS syntax

You can download these tables in Comma-Separated Values (CSV) or MS Excel (XLS) format for analysis in SAS or other statistical software.


Search the ATUS tables by type of occupation*, keyword, census code*, range of activity codes, or range of MET values

View all codes, or search using the following criteria:

(To select more than one, hold CTRL while clicking.)

Search for MET values that are .


Corrections to the original MET values for ATUS activities

Please note the following changes to these tables, which were made to resolve discrepancies or correct oversights in the original versions.

Changes to the SAS Syntax
Activity Previous MET Value Updated MET Value
Updated on 25 May 2011
02 02 99 Food and drink prep, presentation, and clean-up, n.e.c. 2.36 2.32
02 03 01 Interior arrangement, decoration, and repairs 3.32 3.33
02 05 99 Lawn and garden, n.e.c. 3.66 3.45
02 99 99 Household activities, n.e.c. 2.67 2.93
04 05 99 Helping non-Household adults, n.e.c. 2.51 2.64
04 99 99 Caring for and helping non-Household members, n.e.c. 2.64 2.18
14 99 99 Religious and spiritual activities, n.e.c. 1.78 1.75
15 03 99 Indoor & outdoor maintenance, building & clean-up activities, n.e.c. 4.03 3.82
Updated on 14 November 2016
05 5 Life, Physical, and Social Science 2.00 2.02
05 21 Production 2.69 2.67
05 22 Transportation and Material Moving 2.67 2.51

Changes to the Tables (CSV, XLS, and Web)
Activity Previous MET Value Updated MET Value
Updated on 10 December 2009
11 01 01 Eating and drinking 2.00 1.50
11 01 99 Eating and drinking, n.e.c. 2.00 1.50
Updated on 25 May 2011
01 05 01 Personal emergencies activity not listed 1.52
01 05 99 Personal care, emergencies, n.e.c. 1.71 1.52
02 04 99 Exterior maintenance, repair and decoration, n.e.c. activity not listed 4.49
02 05 01 Lawn, Garden, and Houseplants, n.e.c. activity not listed 3.66
02 05 99 Lawn and garden, n.e.c. 3.66 3.45
03 02 99 Activities related to Household children's education, n.e.c. 1.59 1.57
Updated on 18 July 2013
11 02 99 Eating and drinking, n.e.c. corrected to 11 99 99 1.83 1.83 (no change)
Updated on 14 November 2016
05 5 Life, Physical, and Social Science 2.00 2.02
05 21 Production 2.69 2.67
05 22 Transportation and Material Moving 2.67 2.51

The MET values for ATUS activities presented in these tables and in the original articles are to be used expressly for analysis of the American Time Use Survey data. While they are based on the Compendium of Physical ActivitiesExternal Web Site Policy, the MET levels differ from those in the Compendium due to combining activities and their associated MET levels in the ATUS. For consistency in assigning intensity values to physical activity questionnaires, researchers should use the MET values presented in the Compendium of Physical Activities.

*For occupational activities only


MET values for activities in 2002 Census Occupational Classification System (OCS)


View the tables with MET values for OCS activities
Download the 2002 Census OCS tables or SAS syntax

These tables contain activity codes and MET values assigned to occupations in the stated fields. You can download these tables in Comma-Separated Values (CSV) or MS Excel (XLS) format for analysis in SAS or other statistical software.


Search the 2002 Census OCS tables by type of occupation*, keyword, census code*, range of activity codes, or range of MET values

View all codes, or search using the form below. (It is not necessary to enter search criteria for every field.)

Search for these types of occupation:



(Census codes are four-digit numbers, multiples of ten, in the range 0010 through 9750, inclusive. Look them up in the Occupational Classification System (PDF).)

Search for activity codes that are .
(Activity codes are defined and presented in Table 1 in the article. They are multiples of 0.5 in the range 1 through 17, inclusive.)

Search for MET values that are .

  (MET values are multiples of 0.5 in the range 1.5 through 8.0, inclusive.)

  or  


Corrections to the original MET values for 2002 Census OCS activities

Please note the following changes to these tables, which were made to resolve discrepancies or correct oversights in the original versions.

Additions to the tables
Table Management Occupation Title from 2002 Census Occupational Classification System 2002 Census Code Assigned Activity Codes Assigned MET Values
Updated on 14 November 2016
4 (business and financial operations) Insurance underwriters 0860 1 1.5
4 (business and financial operations) Financial examiners 0900 1 1.5
7 (life, physical, and social science) Biological scientists 1610 3 2.0
11 (arts, design, entertainment, sports, media) Public relations specialists 2820 1 1.5
11 (arts, design, entertainment, sports, media) Editors 2830 1 1.5
11 (arts, design, entertainment, sports, media) Technical writers 2840 1 1.5
11 (arts, design, entertainment, sports, media) Writers and authors 2850 1 1.5
11 (arts, design, entertainment, sports, media) Miscellaneous media and communication workers 2860 1 1.5
11 (arts, design, entertainment, sports, media) Broadcast and sound engineering technicians and radio operators 2900 1 1.5
11 (arts, design, entertainment, sports, media) Photographers 2910 4 2.5
23 (production) Grinding, lapping, polishing, and buffing machine tool setters, operators, and tenders, metal and plastic 8000 6 3.5
23 (production) Metal furnace and kiln operators and tenders 8040 6 2.0
23 (production) Model makers and patternmakers, metal and plastic 8060 6 3.5
23 (production) Molders and molding machine setters, operators, and tenders, metal and plastic 8100 6 3.5
23 (production) Multiple machine tool setters, operators, and tenders, metal and plastic 8120 6 3.5
23 (production) Tool and die makers 8130 6 3.5
23 (production) Welding, soldering, and brazing workers 8140 6 3.5
23 (production) Heat treating equipment setters, operators, and tenders, metal and plastic 8150 3 2.0
23 (production) Lay-out workers, metal and plastic 8160 3 2.0
24 (transportation and material moving) Cleaners of vehicles and equipment 9610 5 3.0
Changes to the tables
Table Management Occupation Title from 2002 Census Occupational Classification System Changes made
Updated on 14 November 2016
4 (business and financial operations) Meeting and convention planners Assigned activity code corrected from 11 to 2
6 (architecture and engineering) Drafters Census code corrected from 1550 to 1540
6 (architecture and engineering) Engineering technicians Census code corrected from 1560 to 1550
7 (life, physical, and social science) Agricultural and food scientists Census code corrected from 1610 to 1600
7 (life, physical, and social science) Miscellaneous social scientists and related workers Census code corrected from 1850 to 1860
10 (education, training, and library) Librarians Assigned activity code corrected from 1 to 9
14 (protective service) Fire fighters Assigned activity code corrected from 12 to 13
21 (construction and extraction) Drywall installers, ceiling tile installers, and tapers Assigned MET value corrected from 5.0 to 4.0
21 (construction and extraction) Roustabouts, oil, and gas Assigned activity code corrected from 17 to 16
24 (transportation and material moving) All Entire activity code column was corrected
24 (transportation and material moving) Laborers and freight, stock, and material movers, hand Assigned MET value corrected from 7.5 to 3.0
24 (transportation and material moving) Refuse and recyclable material collectors Assigned MET value corrected from 4.0 to 3.0

The MET values for OCS activities presented in these tables and in the original article are to be used expressly for analysis of Occupational Classification System data. While they are based on the Compendium of Physical ActivitiesExternal Web Site Policy, the MET levels differ from those in the Compendium due to combining activities and their associated MET levels in the OCS.

*For occupational activities only

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