Table 2. Risk factors compared between early P. aeruginosa acquisition (defined by a positive respiratory culture for PA before the age of two years) and late acquisition groups.
| Risk factors | Early acquisition n (%) |
Late acquisition n (%) |
p-value |
|---|---|---|---|
| Number (%) | 40 (47.6) | 44 (52.4) | |
| Sex | |||
| Male | 29 (72.5) | 23 (52.3) | 0.03 |
| Female | 11 (27.5) | 21 (47.7) | |
| Governorate | |||
| A'Dakhiliah | 7 (17.5) | 8 (18.2) | 0.41 |
| North Al Batinah | 18 (45.0) | 21 (47.7) | |
| A'Dhahirah | 8 (20.0) | 3 (6.8) | |
| Al Buraimi | 2 (5.0) | 1 (2.3) | |
| South Al Batinah | 4 (10.0) | 9 (20.5) | |
| Muscat | 1 (2.5) | 2 (4.5) | |
| Siblings with cystic fibrosis | |||
| 0 | 24 (60.0) | 29 (65.9) | 0.57 |
| ≥ 1 | 16 (40.0) | 15 (34.1) | |
| CFTR genotypes* | |||
| Homozygous p.Ser549Arg | 26 (65.0) | 32 (76.2) | 0.41 |
| Homozygous DelF508 | 4 (10.0) | 5 (11.9) | |
| Other heterozygous | 4 (10.0) | 1 (2.4) | |
| Other homozygous | 6 (15.0) | 4 (9.5) |
*Cystic fibrosis transmembrane conductance regulator (CFTR) genotype is missing for two patients in the late group.