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Volume 11, Number 8—August 2005

Research

Estimating Foodborne Gastroenteritis, Australia

Gillian Hall*Comments to Author , Martyn D. Kirk†, Niels Becker*, Joy E. Gregory‡, Leanne Unicomb§, Geoffrey Millard¶, Russell Stafford#, Karin Lalor‡, and the OzFoodNet Working Group
Author affiliations: *Australian National University, Canberra, Australian Capital Territory (ACT), Australia; †OzFoodNet, Canberra, ACT, Australia; ‡Department of Human Services, Melbourne, Victoria, Australia; §Hunter Population Health Unit, Wallsend, New South Wales, Australia; ¶ACT Analytical Laboratory, Weston Creek, ACT, Australia; #Queensland Health, Archerfield, Queensland, Australia

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Table 2

Estimated hospital diagnoses of gastroenteritis due to foodborne pathogens in Australia, circa 2000*

Agent ICD-9-CM code No. hospital diagnoses per year (95% CrI)† % foodborne (95% CrI) No. hospital diagnoses from foodborne transmission per year (95% CrI)‡
Bacteria 4,960 (3,360–6,310) 70 (65–75) 3,480 (2,440–4,500)
Aeromonas spp. NA NA 25 (12–38)
Bacillus cereus 008.59 29 (0–66) 100 29 (0–66)
Campylobacter spp. 008.43 3,140 (1,754–4,546) 75 (67–83) 2,260 (1,250–3,300)
Clostridium perfringens 005.2 1 (0–3) 100 1 (0–3)
Escherichia coli 008.00–04 102 (53–154) 50 (32–68) 50 (23–86)
Salmonella spp. (nontyphoidal) 003 1,330 (1,130–1,530) 87 (81–93) 1,060 (900–1,240)
Shigella spp. 004 320 (270–370) 10 (4–16) 19 (8–31)
Staphylococcus aureus 005.0 21 (17–25) 100 21 (17–25)
Vibrio parahaemolyticus 005.4 4 (2–6) 71 (54–88) 3 (1–5)
Yersinia enterocolitica 008.44 34 (24–44) 75 (63–87) 25 (17–35)
Viruses 3,940 (3,740–4,140) 2 (1–3) 100 (60–140)
Astrovirus/adenovirus 008.62/008.66 190 (130–250) 10 (2–18) 19 (4–37)
Norovirus 008.63 17 (2–32) 25 (12–38) 4 (0–9)
Rotavirus 008.61 3,740 (3,540–3,920) 2 (1–3) 70 (40–110)
Parasites 1,160 (950–1,390) 6 (2–9) 64 (19–116)
Cryptosporidium spp. 007.4 200 (0–400) 10 (2–18) 14 (0–49)
Giardia lamblia 007.1 1,000 (900–1,100) 5 (1–9) 49 (7–90)
Total known§ 10,070 (8,630–11,470) 3,640 (2,600–4,670)
Miscellaneous and unknown agents 30,800 (22,700–38,400) 36 (30–41)¶ 11,000 (8,000–14,000)
Miscellaneous agents (not listed above) 2,800 (2,400–3,200) 1,000 (800–1,200)
Unknown#

28,000 (20,000–35,700)

10,000 (6,800–13,200)
Total known and unknown 41,000 (33,000–49,000) 36 (30–41) 14,700 (11,400–18,000)

*ICD-9-CM, International Classification of Diseases, Ninth Revision, Clinical Modification; CrI, credibility interval; NA, not applicable.
†Includes principal and 9 additional diagnoses. Simulated distribution based on raw yearly National Hospital Mortality Database data 1993/1994–1998/1999.
‡Adjusted for 1) proportion foodborne and 2) proportion overseas acquired.
§36% (95% CrI 30%–41%) known pathogens foodborne (not overseas acquired).
¶Apply % foodborne in known pathogens.
#Includes codes 0051–3 and 8–9, 00849, 0085, 0088, 009, 00841–2, 00846–9,and 00869.

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