Table 4.
Prevalence of heartburn in selected other studies.
| Author (ref) | Country | Year | Prevalence of Heartburn (%) | Frequency Assessed |
|---|---|---|---|---|
|
| ||||
| Locke GR et al.5 | USA | 1997 | 19.8 | Weekly |
|
| ||||
| Ho KY et al. 42 | Singapore | 1998 | 1.6 | Monthly |
|
| ||||
| Spechler SJ et al.7 | USA | 2002 | 28.7 | Monthly |
|
| ||||
| Wong WM et al. 43 | China | 2003 | 29.8 | Annually |
| 8.9 | Monthly | |||
| 2.5 | Weekly | |||
|
| ||||
| El-Serag HB et al. 6 | USA | 2004 | Blacks | Weekly |
| Whites 23.0 | ||||
| Other races 24.0 | ||||
|
| ||||
| Nilsson M et al. 9 | Sweden | 2004 | (only those with servere symptoms included) | |
|
| ||||
| 72.0 | Monthly | |||
| 23.0 | Weekly | |||
| 5.0 | Daily | |||
|
| ||||
| Wong WM et al. 44 | China | 2004 | 34.1 | Annually |
| 10.1 | Monthly | |||
| 2.7 | Weekly | |||
|
| ||||
| Ho KY et al. 45 | Singapore | 2005 | 10.5 | Monthly |
|
| ||||
| El-Serag HB et al. 46 | USA | 2005 | 26.0 | Weekly |
|
| ||||
| Mohammad et al.10 | England | 2005 | 21.0 | Weekly |
|
| ||||
| Nocon M etal. 11 | Germany | 2006 | 18.0 | Not defined |
|
| ||||
| Jacobson BC et al. 47 | USA | 2006 | 22.0 | Weekly |
|
| ||||
| Corley DA etal.32 | USA | 2007 | 11.0 | Not defined |
|
| ||||
| Yuen E et al.31 | USA | 2010 | 34.6 | Monthly |
| 26.2 | Weekly | |||
| 8.2 | Daily | |||
|
| ||||
| Sharma PK et al.34 | India | 2011 | 17.7 | Monthly |
| 5.9 | Weekly | |||
| 3.6 | Daily | |||