Table 1 . Comparison of various studies on cystic fibrosis in Asia.
| Finding/ Study |
Present
Study |
Iran,
Shiraz |
Jordan |
Saudi
Arabia |
Qatar | Japan | Bahrain |
| No. of patients | 233 | 54 | 202 | 12 | 45 | 25 | 25 |
| Duration of study (years) | 10 | 10 | 9 | - | 13 | 7 | 9 |
| Prevalent age (months) | < 6 | < 6 | - | < 6 | - | - | < 6 |
| F/M ratio | 1:1.5 | 1:1.2 | - | 1:1.4 | - | 1:1.2 | - |
| Consanguineous marriages (%) | 42 | 80 | 69 | 83 | 98 | - | 80 |
| Family History. for CF(%) | 27 | - | - | - | - | 30 | - |
| Meconium ileus(%) | 9 | 9 | 7/2 | 8 | - | 20 | - |
| Gastriesophageal Reflux(%) | 74 | - | - | - | - | - | - |
| Failure to thrive (FTT) (%) | 89 | 90 | 75/4 | 100 | - | 96 | - |
| Anemia (%) | 9/7 | - | - | - | - | - | - |
| Rickets (%) | 9/5 | - | - | - | - | - | - |
| Mean sweat chloride level | - | 125 | - | - | - | - | - |
| Mortality during the study (%) | 13.4* | 70 | 23 | 8 | 0 | - | - |
*In hospital inpatient mortality