Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2019 Sep 13;58(2):132–141. doi: 10.2486/indhealth.2018-0169

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

©2020 National Institute of Occupational Safety and Health

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives (by-nc-nd) License. (CC-BY-NC-ND 4.0: https://creativecommons.org/licenses/by-nc-nd/4.0/)

PMC Copyright notice

Fig. 3. — Proportions of individuals from the Korean Working Conditions Survey in the four-cluster clustering (A4, B4, C4, and D4) according to the major groups of the International Standard Classification of Occupations. Group 1 (N=558): Managers, Group 2 (N=1,917): Professionals, Group 3 (N=1,120): Technicians and associate professionals, Group 4 (N=5,337): Clerical support workers, Group 5 (N=8,233): Service and sales workers, Group 6 (N=641): Skilled agricultural, forestry and fishery workers, Group 7 (N=2,223): Craft and related trades workers, Group 8 (N=1,428): Plant and machine operators, and assemblers, and Group 9 (N=1,603): Elementary occupations.