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Table 1 Injury rates, rate ratios and 95 % confidence intervals, and injury rate model estimate

From: Trends in non-fatal agricultural injuries requiring trauma care

Year Number of injuriesN (%) Number of hired workers, ranchers, and farm operators Injury rate per 100,000 hired workers, ranchers, and farm operators (95 % CI) Rate ratios (95 % CI)
2005 63 (5.09) 206,640 30.49 (22.72, 38.26) 1.00 (Ref.)
2006 95 (7.67) 207,316 45.82 (36.37, 55.28) 1.50 (1.09, 2.07)
2007 97 (7.84) 207,992 46.64 (37.12, 56.16) 1.53 (1.11, 2.10)
2008 148 (11.95) 208,669 70.93 (59.26, 82.59) 2.33 (1.73, 3.12)
2009 174 (14.05) 209,345 83.12 (70.53, 95.70) 2.73 (2.04, 3.64)
2010 149 (12.04) 210,021 70.95 (59.32, 82.57) 2.33 (1.73, 3.12)
2011 160 (12.92) 210,697 75.94 (63.94, 87.94) 2.49 (1.86, 3.33)
2012 176 (14.22) 211,373 83.27 (70.73, 95.80) 2.73 (2.05, 3.64)
2013 176 (14.22) 212,050 83.00 (70.51, 95.49) 2.72 (2.04, 3.63)
All 1238 (100)    
  1. Regression estimate β for injury rate model (e β)
  2. β= 0.1065 (e β =1.11); p-value <0.0001