Table 3.
Identified population prevalence studies on symptoms of gastro-oesophageal reflux not meeting the inclusion criteria for analysis (in reverse date order)
| Reference (first author) | Sample size &;reported | Sample size &;⩾200 | Response &;rate reported | Response &;rate ⩾50% | Recall period &;reported | Recall period &;⩽1 year | At least weekly &;symptoms &;reported |
| Rajendra (2004)36 | No | No | |||||
| Wong (2004)37 | No | ||||||
| Fujimoto (2003)38 | No | No | No | No | |||
| Khoshbaten (2003)39 | No | No | No | ||||
| Nilsson (2003)22 | No | ||||||
| Watanabe (2003)40 | No | ||||||
| Cameron (2002)41 | No | ||||||
| Conio (2002)42 | No | No | |||||
| Louis (2002)43 | No | No | |||||
| Agreus (2001)44 | No | ||||||
| Avidan (2001)45 | No | No | No | ||||
| Haque (2000)46 | No | ||||||
| Kennedy (2000)47 | No | ||||||
| Jasani (1999)48 | No | ||||||
| Lagergren (1999)49 | No | ||||||
| Oliveria (1999)50 | No | ||||||
| Kennedy (1998)51 | No | ||||||
| Corder (1996)52 | No | ||||||
| Mold (1991)53 | No | ||||||
| Ruth (1991)54 | No | No | |||||
| Nebel (1976)55 | No |