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. Author manuscript; available in PMC: 2015 Oct 16.
Published in final edited form as: Wilderness Environ Med. 2014 Jan 13;25(1):14–23. doi: 10.1016/j.wem.2013.08.007

Table 3.

Estimated national numbers and percentages of nonfatal unintentional bite and sting injuries treated in emergency departments by year and selected sources, United States, 2001–2010

Arachnid
Year Spider (toxic) number (%) Other spider number (%) Tick number (%) Other arachnid number (%) Total arachnid number (%)
2001 5867 (12.5) 75,954 (5.5) 45,786 (7.6) 7594 (9.9) 135,202 (6.4)
2002 6151 (13.1) 81,165 (5.9) 40,663 (6.8) 9311 (12.1) 137,289 (6.5)
2003 7559 (16.1) 128,660 (9.3) 62,518 (10.4) 8008 (10.4) 206,744 (9.8)
2004 5882 (12.5) 197,885 (14.3) 43,065 (7.2) 8663 (11.3) 255,495 (12.1)
2005 5527 (11.8) 183,166 (13.3) 46,684 (7.8) 8652 (11.3) 244,029 (11.6)
2006 4274 (9.1) 168,148 (12.2) 53,738 (9.0) 8577 (11.2) 234,737 (11.2)
2007 2755 (5.9) 160,339 (11.6) 67,518 (11.3) 7207 (9.4) 237,819 (11.3)
2008 2666 (5.7) 134,063 (9.7) 68,490 (11.4) 4955 (6.4) 210,174 (10.0)
2009 3038 (6.5) 122,707 (8.9) 89,031 (14.9) 6411 (8.3) 221,187 (10.5)
2010 3281 (7.0)a 129,776 (9.4) 81,300 (13.6) 7507 (9.8) 221,865 (10.5)
Total 46,999 (100) 1,381,863 (100) 598,792 (100) 76,885 (100) 2,104,539 (100)
Insects
Year Bedbug number (%) Bee number (%) Vespid number (%) Other insect number (%) Total insects number (%)
2001 21 (0.1)a 171,770 (10.6) 43,795 (10.8) 359,939 (7.6) 575,526 (8.4)
2002 113 (0.3)a 163,595 (10.1) 49,373 (12.2) 391,326 (8.2) 604,406 (8.9)
2003 50 (0.2)a 180,393 (11.1) 49,357 (12.2) 431,763 (9.1) 661,564 (9.7)
2004 333 (1.0)a 169,762 (10.5) 45,708 (11.3) 500,314 (10.5) 716,118 (10.5)
2005 447 (1.4)a 174,808 (10.8) 34,485 (8.5) 523,437 (11.0) 733,177 (10.8)
2006 1267 (3.8)a 146,885 (9.1) 35,184 (8.7) 555,274 (11.7) 738,610 (10.8)
2007 2156 (6.5) 161,223 (9.9) 36,358 (9.0) 476,168 (10.0) 675,905 (9.9)
2008 3267 (9.9) 131,637 (8.1) 37,956 (9.4) 461,254 (9.7) 634,113 (9.3)
2009 9442 (28.6) 165,518 (10.2) 37,741 (9.3) 487,121 (10.2) 699,822 (10.3)
2010 15,945 (48.3) 155,205 (9.6) 34,158 (8.5) 573,646 (12.1) 778,953 (11.4)
Total 33,041 (100) 1,620,796 (100) 404,115 (100) 4,760,242 (100) 6,818,194 (100)
Reptile
Year Snake (venomous) number (%) Snake (nonvenomous/unknown) number (%) Other reptile number (%) Total reptile number (%)
2001 3056 (10.8)a 6609 (0.5) 1739 (12.7) 11,404 (10.8)
2002 2717 (9.6)a 6255 (9.9) 2182 (15.9) 11,153 (10.6)
2003 4189 (14.8)a 7334 (11.6) 1538 (11.2) 13,062 (12.4)
2004 2791 (9.9) 6540 (10.3) 1417 (10.3) 10,747 (10.2)
2005 3512 (12.4)a 6075 (9.6) 1206 (8.8) 10,793 (10.2)
2006 2009 (7.1)a 6783 (10.7) 1713 (12.5)a 10,504 (10.0)
2007 2238 (7.9)a 8911 (14.1) 1127 (8.2)a 12,276 (11.7)
2008 2358 (8.3)a 5376 (8.5) 1120 (8.2)a 8854 (8.4)
2009 2619 (9.3)a 4149 (6.5) 638 (4.7)a 7406 (7.0)
2010 2762 (9.8)a 5369 (8.5) 1023 (7.5)a 9154 (8.7)
Total 28,250 (100) 63,400 (90.1) 13,704 (100) 105,353 (100)
a

Estimates might be unstable because the number of sample cases was <20, weighted estimate <1200, or coefficient of variation was >30%.