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. 2012 Nov 12;7(11):e48806. doi: 10.1371/journal.pone.0048806

Table 3. Prevalence of Influenza like illness (ILI) by occupation and select characteristics, Washington State employed population, BRFSS September 2009 to August 2010.

ILI (%)
Age Gender Months Vaccinateda
1990 Census Occupation % ILI (95% CI) ILI PR (95% CI) 18–49 50–89 Male Female Sept 2009–March 2010 April 2010–Aug 2010 Yes No
All Currently Employed 6.8 (6.1, 7.6) 7.6 5.1 5.8 8.0 7.6 6.0 7.0 7.9
Managers and Administrators, n.e.c. 6.5 (4.2, 8.8) 0.9 (0.6, 1.4) 7.2 5.1 5.9 7.6 8.1 4.9 7.9 7.4
Teachers, Elementary School 5.1 (2.8, 7.3) 0.7 (0.5, 1.2) 4.8 5.6 4.7 5.2 7.0 2.8 1.0 7.5
Registered Nurses 5.7 (1.6, 9.9) 0.8 (0.4, 1.8) 7.7 2.3 6.1 7.9 3.4 9.2 4.7
Nursing Aides, Orderlies and Attendants 10.1 (4.9, 15.4) 1.5 (0.9, 2.6) 11.1 8.1 8.5 12.0 8.2 9.9
Supervisors and Proprietors, Sales Occupations 5.9 (2.3, 9.5) 0.9 (0.5, 1.6) 6.6 4.0 4.4 8.2 8.3 3.2 5.3
Administrative Support Occupations 9.5 (2.7, 16.3) 1.4 (0.7, 2.9) 10.8 6.0 7.4 12.4 6.2 10.8
Technicians, n.e.c. 3.0 (0.6, 5.3) 0.4 (0.2, 0.9) 2.4 4.4 1.5 4.3 1.4 4.7
Sales Workers, Other Commodities 4.0 (0.0, 8.0) 0.6 (0.2, 1.7) 4.1 3.5 1.2 7.6 5.3 2.2 5.3
Farmers, except Horticultural 4.0 (0.0, 9.2) 0.6 (0.2, 2.2) 1.2 5.4 2.1 2.1
Janitors and Cleaners 17.1 (6.5, 27.7) 2.5 (1.3, 4.7) 13.3 14.1 21.4 17.5 16.4 17.9
Management Related Occupations, n.e.c 6.1 (0.8, 11.5) 0.9 (0.4, 2.2) 7.0 4.1 8.6 10.9 2.0 1.0
Truck Drivers 1.6 (0.0, 3.4) 0.2 (0.1, 0.7) 1.5 1.8 1.7 1.0 2.9
Managers, Medicine and Health 7.9 (2.4, 13.4) 1.1 (0.6, 2.3) 8.6 10.5 8.9
Engineers, n.e.c 7.4 (0.0, 14.9) 1.1 (0.4, 3.0) 8.1 10.4 11.0
Administrators, Education and Related Fields 4.2 (0.3, 8.2) 0.6 (0.2, 1.6) 7.5 5.5 2.4 4.1
Secretaries 16.6 (3.7, 29.5) 2.4 (1.1, 5.4) 8.5 16.5
Bookkeepers, Accounting, and Auditing Clerks 9.4 (2.0, 16.8) 1.4 (0.6, 3.1) 6.7 9.8 12.6 13.1
Accountants and Auditors 5.4 (0.0, 11.6) 0.8 (0.2, 2.5) 8.3 5.3 14.9
Financial Managers 13.0 (3.1, 23.0) 1.9 (0.9, 4.2) 13.8 13.2 9.8
Teachers, n.e.c 4.2 (0.0, 8.7) 0.6 (0.2, 1.8) 6.6 3.4 6.3
Investigators and Adjusters, except Insurance 10.4 (2.5, 18.3) 1.5 (0.7, 3.3) 11.6 11.9
Postsecondary Teachers 6.2 (0.2, 12.2) 0.9 (0.3, 2.4) 7.1 6.4
Management Analysts 4.5 (0.0, 10.6) 0.7 (0.2, 2.6) 2.3 3.1
Cashiers 12.0 (2.2, 21.7) 1.8 (0.8, 4.0) 10.5 14.3
Computer Systems Analysts and Scientists 6.3 (0.0, 12.8) 0.9 (0.3, 2.6) 5.9 6.9
Secondary School Teachers 7.7 (0.0, 15.7) 1.1 (0.4, 3.2) 11.7
Construction Laborers 2.4 (0.0, 5.3) 0.3 (0.1, 1.2) 2.7 2.7
General Office Clerks 6.5 (0.6, 12.4) 0.9 (0.4, 2.4) 15.4 8.2
Computer Programmers 4.7 (0.0, 10.5) 0.7 (0.2, 2.4) 3.9 4.4 5.9
Reference group: All other occupations (with ≤70 respondents) 6.8 (5.7, 7.9) 1.0 8.0 4.1 6.3 7.6 6.9 6.8 5.8 8.0

Note. CI = confidence interval; n.e.c. = not elsewhere classified; all data were weighted to account for BRFSS sampling design; results for categories with <50 respondents are not reported.

a

The number of respondents for the vaccination status question was 6,139.