| Product | | | | |
| Campylobacter jejuni contamination | | | | |
| Prevalence | | PR | =RiskBeta (1,225) | This research; Vose (1998) |
| Initial contamination level | CFU/g | Ci | =–LN (1–PR)/25 | Sanaa et al. (2004) |
| Log CFU/g | IC | =Log (Ci) | |
| Market | | | | |
| Market storage | | | | |
| Time | h | Mark-timest | =RiskPert (0, 72, 120) | Personal communication1) |
| Temperature | °C | Mark-Tempst | =RiskPert (−23.6, −18.8, −14) | Kim (2002) |
| Survival | | | | |
| Delta | | δ | =1/{0.0298+(−0.0092×Mark-Tempst)+(0.0007×Mark-Tempst2)} | This research;Davey (1991) |
| ρ | | ρ | =1/{0.7629+(−0.0067×Mark-Tempst)+(0.0017×Mark-Tempst2)} | This research;Davey (1991) |
| C. jejuni survival | Log CFU/g | C1 | =IC–{(Mark-timest/δ)ρ} | Mafart et al. (2002) |
| Market display | | | | |
| Time | h | Mark-timedis | =RiskPert (0, 36, 168) | Personal communication |
| Temperature | °C | Mark-Tempdis | =RiskPert (−23.6, −18.8, −14) | Kim (2002) |
| Survival | | | | |
| Delta | | δ | =1/{0.0298+(−0.0092×Mark-Tempdis)+(0.0007×Mark-Tempdis2)} | This research;Davey (1991) |
| ρ | | ρ | =1/{0.7629+(−0.0067×Mark-Tempdis)+(0.0017×Mark-Tempdis2)} | This research;Davey (1991) |
| C. jejuni survival | Log CFU/g | C2 | =C1–{(Mark–timedis/δ)ρ} | Mafart et al. (2002) |
| Transportation (vehicle) | | | | |
| Transportation from market to home | | | | |
| Time | h | Timetrans | =RiskPert (0.325, 0.984, 1.643) | Jung (2011) |
| Temperature | °C | Temptrans | =RiskPert (10, 18, 25) | Jung (2011) |
| Survival | | | | |
| Delta | | δ | =1/{0.0298+(−0.0092× Temptrans)+(0.0007× Temptrans 2)} | This research;Davey (1991) |
| ρ | | ρ | =1/{0.7629+(−0.0067× Temptrans)+(0.0017× Temptrans 2)} | This research;Davey (1991) |
| C. jejuni survival | Log CFU/g | C3 | =C2–{(Timetrans/δ)ρ} | Mafart et al. (2002) |
| Consumption | | | | |
| Average consumption amount | g/day | Consum | =RiskExpon (28.262, RiskShift (−0.018841)) | This research |
| Consumption frequency | %/day | ConFre | Fixed 6.98 | This research |
| Consumption pattern | | CF(0) | =1–(6.98/100) | This research |
| | CF(1) | =6.98/100 | This research |
| | CF | =RiskDiscrete ({0, 1}, {CF(0), CF(1)}) | This research |
| | Amount | =IF (CF=0, 0, Consum) | This research |
| Dose-response | | | | |
| C. jejuni amount | | D | =10C3×Amount | Medema et al. (1996), Teunis and Havelaar (2000) |
| Parameters | | α | Fixed 0.145 | Medema et al. (1996), Teunis and Havelaar (2000) |
| | β | Fixed 7.59 | Medema et al. (1996), Teunis and Havelaar (2000) |
| Probability of infection by one ingested C. jejuni | | p1 | =RiskBeta (α, β) | Nauta et al. (2007) |
| Probability of infection | | Pinf (D) | =1–(1– p1)D | Nauta et al. (2007) |
| Probability of illness given infection | | Pill|inf | Fixed 0.33 | Havelaar et al. (2000) |
| Risk | | | | |
| Probability of illness /person/day | | Risk | = Pinf (D)×Pill|inf | Nauta et al. (2007) |