Table 3 Multivariate logistic regression analysis of factors associated with Salmonella and Shigella isolates among food handler’s working at Adigrat University Students’ Cafeteria, Tigrai, Northern Ethiopia, March to August 2018 (N = 301)
Variables | Growth of Salmonella and Shigella | CORa (95% CIb) | P-value | AORc (95%CI) | P-value | |
|---|---|---|---|---|---|---|
Positive N (%) | Negative N (%) | |||||
Hand washing using after using the bathroom | ||||||
Yes with water and soap | 1 (0.9) | 112 (99.1) | 1 | 1 | ||
Yes only with water | 17 (13.6) | 108 (86.4) | 17.630 (2.306,134.7) | 0.006 | 23.239 (2.125–254.17) | 0.010* |
No | 15 (23.8) | 48 (76.2) | 35.000 (4.495,272.49) | 0.001 | 62.917 (5.11–77.34) | 0.001* |
Hand washing after touching dirty materials | ||||||
Yes with water and soap | 5 (3.4) | 141 (96.6) | 1 | 1 | ||
Yes only with water | 14 (11.0) | 113 (89.0) | 3.494 (1.222, 9.991) | 0.020 | 1.089 (0.187–6.345) | 0.924 |
No | 14 (50.0) | 14 (50.0) | 28.200 (8.845, 89.906) | 0.000 | 37.189 (5.658–244.45) | 0.001* |
Hand washing before food handling | ||||||
Yes with water and soap | 2 (1.8) | 112 (98.2) | 1 | 1 | ||
Yes only with water | 13 (9.2) | 129 (90.8) | 5.643 (1.247, 25.548) | 0.025 | 5.972 (0.899–39.677) | 0.064 |
No | 18 (40.0) | 27 (60.0) | 37.333 (8.164, 170.714) | 0.000 | 33.065 (4.958–220.52) | 0.001* |
Finger nail status | ||||||
Trimmed | 4 (2.2) | 174 (97.8) | 1 | 1 | ||
Untrimmed | 29 (23.6) | 94 (76.4) | 10.490 (3.780, 29.09) | 0.000 | 13.973 (3.404–57.362) | 0.001* |