Table 7. Prophylactic effect of IgY against diarrhea in Piglets.
| Study | No. of mortality by diarrhea (or) No. with diarrhea/No. in Group (%) | Outcome measure considered - Mortality (M) or Diarrhea (D) | Relative Risk (RR) | 95% Confidence Interval (CI) | |
| Intervention | Control | ||||
| Animal Class: Pig | |||||
| Bacterial Pathogen | |||||
| Imberechts 1997 | 2/6 (33) | 4/6 (66) | D | 0.500 | 0.141 to 1.772 |
| 2/8 (25) | 6/8 (75) | D | 0.333 | 0.0941 to 1.181 | |
| 0/8 (0) | 2/8 (25) | M | 0.200 | 0.0112 to 3.576 | |
| Marquardt 1999 | 1/8(12.5) | 5/8(26.5) | M | 0.200 | 0.0296 to 1.351 |
| 0/10(0) | 3/10 (30) | M | 0.143 | 0.00837 to 2.438 | |
| Owsu-Asiedu 2002 | 7/24(30) | 13/18 (73) | D | 0.404 | 0.203 to 0.802 |
| 8/24(33) | 18/18 (100) | D | 0.333 | 0.189 to 0.587 | |
| Owsu-Asiedu 2003a | 1/15(6.6) | 6/15 (40) | M | 0.167 | 0.0227 to 1.222 |
| Owsu-Asiedu 2003b | 0/18 (0) | 8/24(33) | M | 0.078 | 0.00480 to 1.265 |
| Chernysheva 2004 | 8/12 (66) | 8/12 (66) | D | 1.000 | 0.568 to 1.761 |
| Chu 2006 | 1/6 (16.7) | 4/6 (66.7) | M | 0.250 | 0.0383 to 1.633 |
| Li 2009 | 0/4(0) | 3/4 (75) | D | 0.143 | 0.01000 to 2.041 |
| Sarandan 2010 | 0/3 (0) | 3/3 (100) | D | 0.143 | 0.0110 to 1.860 |
| Viral Pathogen | |||||
| Kweon 2000 | 5/19 (26) | 10/17(58) | M | 0.447 | 0.191 to 1.048 |
| Zuo 2009 | 1/8 (12.5) | 4/7 (57) | M | 0.219 | 0.0314 to 1.526 |
| Vega 2012 | 0/4(0) | 6/6(100) | D | 0.111 | 0.00814 to 1.516 |
| Pooled random effects | 0.381 | 0.265 to 0.549 | |||
Test for Heterogeneity: Q = 19.39; DF = 15; P = 0.1965, I2 = 22.65% (95% CI for I2 = 0.00 to 57.44).