| Study | Reason for exclusion |
|---|---|
| Ceyhan 1993 | Randomization of children to breastfeed or bottle feed, not to vaccine. Only collected immunological data. Study design: RCT. Study location: Turkey. |
| Christy 1986 | Not randomized. Study design: clinical trial. Study location: USA. |
| Clements‐Mann 2001 | Only collected immunological data. Study design: RCT. Study location: USA. |
| Friedman 1993 | Not randomized, only collected immunological data. Study design: clinical trial. Study location: Israel. |
| Giammanco 1988 | Only collected immunological data. Study design: RCT. Study location: Italy. |
| Halsey 1988 | Not randomized. Study design: clinical trial. Study location: USA. |
| Isolauri 1995 | Randomization of children to receive Lactobacillus casei GG or not with the rotavirus vaccine. All children received the rotavirus vaccine. Study design: RCT. Study location: Finland. |
| Jalil 1991 | Not randomized. All children received the rotavirus vaccine. Study design: CCT. Study location: Pakistan. |
| Jin 1996 | Only collected immunological data. Study design: RCT. Study location: USA. |
| Kobayashi 1993 | Only collected immunological data. Study design: RCT. Study location: USA. |
| Kobayashi 1994 | Only collected immunological data. Study design: RCT. Study location: USA. |
| Losonsky 1988 | Only collected immunological data. Study design: RCT. Study location: USA. |
| Markwick 1998 | Only collected immunological data. Study design: RCT. Study location: USA. |
| Midthun 1989 | Only collected immunological data. Study design: RCT. Study location: Venezuela. |
| Padilla 1992 | Only collected immunological data. Study design: clinical trial. Study location: USA. |
| Pang 1999a | Only collected immunological data. Study design: RCT. Study location: Finland. |
| Pang 1999b | Only collected immunological data. Study design: RCT. Study location: Finland. |
| Pang 1999c | Only collected immunological data. Study design: RCT. Study location: Finland. |
| Pang 1999d | Only collected immunological data. Study design: RCT. Study location: Finland. |
| Pickering 1995 | Only collected immunological data. Study design: RCT. Study location: USA. |
| Simasathien 1994 | Only collected immunological data. Study design: RCT. Study location: Thailand. |
| Tajima 1990 | Only collected immunological data. Study design: RCT. Study location: USA. |
| Ukae 1994 | Not randomized. Study design: CCT. Study location: Japan. |
| Vesikari 1983 | Not randomized. Study design: clinical trial. Study location: Finland. |
| Vesikari 1985b | Only collected immunological data. Study design: RCT. Study location: Finland. |
| Vesikari 1986b | Only collected immunological data. Study design: RCT. Study location: Finland. |
| Vesikari 1987a | Only collected immunological data. Study design: RCT. Study location: Yugoslavia. |
| Vodopija 1986 | Only collected immunological data. Study design: RCT. Study location: Yugoslavia. |
| Wright 1991 | Only collected immunological data. Study design: RCT. Study location: USA. |
| Zoppi 1986 | Randomization of children to receive milk or soy formula, not to vaccine. Only collected immunological data. Study design: RCT. Study location: Italy. |
| Zoppi 1989 | Randomization of children to receive milk or soy formula, not to vaccine. Only collected immunological data. Study design: RCT. Study location: Italy. |
RCT: randomized controlled trial CCT: controlled clinical trial (not randomized)