Skip to main content
. 2023 Sep 18;18(9):e0291428. doi: 10.1371/journal.pone.0291428

Table 3. Clustering results based on ward’s method.

List of 8 clusters List of 17 groups Example occupations
Cluster 1: Managerial and supervisory occupations (n = 71) Group 1: Managers (n = 43) Human Resources Managers
Sales Managers
Agents/Business Managers of Artists/Athletes
Transportation Planners
Group 2: Supervisors (n = 28) Postmasters and Mail Superintendents
First-Line Supervisors of Retail Sales Workers
Cluster 2: Education, mental health and counselling occupations (n = 71) Group 3: Educators (n = 39) Biological Science Teachers, Postsecondary
Communications Teachers, Postsecondary
History Teachers, Postsecondary
Group 4: Counselors (n = 32) Clinical, Counseling, and School Psychologists
Mental Health, Substance Abuse Social Workers
Special Education Teachers, Secondary School
Cluster 3: Science, technology and engineering occupations (n = 100) Group 5: Scientists (n = 36) Biomedical Engineers
Hydrologists
Geographers
Group 6: Non-medical technicians (n = 64) Private Detectives and Investigators
Sound Engineering Technicians
Electrical/Electronic Engineering Technologists
Agricultural and Food Science Technicians
Computer Programmers
Electrical and Electronics Drafters
Cluster 4: Special and support services occupations (n = 76) Group 7: Medical technicians (n = 19) Respiratory Therapists
Group 8: Physicians (n = 36) Adapted Physical Education Specialists
Pharmacists
Registered Nurses
Oral and Maxillofacial Surgeons
Group 9: Safety protectors (n = 21) Police and Sheriff’s Patrol Officers
Air Traffic Controllers
Cluster 5: Analytical and expert services occupations (n = 90) Group 10: Analysts (n = 37) Financial Examiners
Statisticians
Loan Officers
Insurance Sales Agents
Group 11: Clerical workers (n = 22) Librarians
Editor
Group 12: Office staff (n = 31) Medical Secretaries Data Entry Keyers
Cluster 6: Customer and personal services occupations (n = 86) Group 13: Personal service providers (n = 55) Home Health Aids
Bakers
Hotel, Motel, and Resort Desk Clerks
Counter and Rental Clerks
Cook, Fast Food
Group 14: Sales persons (n = 31) Costume Attendants
Fitness Trainer and Aerobics Instructors
Retail Sales persons
Hairdressers, Hairstylists, and Cosmetologists
Cluster 7: Equipment operation and services occupations (n = 84) Group 15: Equipment operators (n = 84) Bus and Truck Mechanics, Diesel Engine Specialists
Elevator Installers and Repairers
Radio, Cellular, Tower Equipment Installers/Repairers
Highway Maintenance Workers
Crane and Tower Operators
Cluster 8: Basic services, crafts and manual occupations (n = 178) Group 16: Craftspersons (n = 133) Watch Repairers
Fiberglass Laminators and Fabricators
Industrial Truck and Tractor Operators
Floor Sanders and Finishers
Tile and Marble Setters
Metal-Refining Furnace Operators and Tenders
Group 17: Manual labors (n = 45) Locker Room, Coatroom, Dressing Room Attendants
Laborers and Freight, Stock, Material Movers, Hand
Light Truck or Delivery Services Drivers