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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: Am J Ind Med. 2015 Aug 25;58(12):1270–1277. doi: 10.1002/ajim.22510

Table I. Sampling frame and agency-level characteristics.

Years of data Cumulative hours of work OSHA reports OSHA rate (per 100 FTE per Year) Midpoint workforce size Hours of work per employee per week (Mean, SD)
Location
 Agency 1 2.50 1,773,139 90 10.2 348 40.0 (15.3)
 Agency 2 1.08 219,762 23 20.9 132 35.2 (14.9)
 Agency 3 2.50 778,834 26 6.7 170 33.9 (11.3)
 Agency 4 2.76 820,096 68 16.6 145 44.0 (20.8)
 Agency 5 2.67 832,416 20 4.8 117 50.2 (20.7)
 Agency 6 2.91 1,600,990 136 17.0 255 41.0 (15.5)
 Agency 7 2.91 1,097,959 51 9.3 186 40.9 (14.9)
 Agency 8 2.52 461,899 40 17.3 96 38.3 (12.8)
 Agency 9 2.00 777,045 219 56.4 255 35.6 (19.7)
 Agency 10 2.91 718,311 36 10.0 148 38.4 (17.5)
 Agency 11 2.85 1,179,573 50 8.5 220 38.4 (20.9)
 Agency 12 2.91 1,015,161 23 4.5 222 34.8 (13.9)
 Agency 13 1.82 384,328 156 81.2 138 33.7 (14.7)
 Agency 14 1.83 524,790 12 4.6 174 33.9 (19.0)
Total 34.17 12,184,303 950 15.6 2,606 38.8 (17.0)