Relationship between neonatal IRT, ΔF508, and IVS8-5T
| IRT (μg/l) | Total No per stratum | No of study subjects | ΔF508 (OR) | IVS8-5T (OR) |
| 0–5 | 7 942 | 104 | 2 (1.0)1-150 | 6 (1.0)1-150 |
| 6–10 | 26 714 | 95 | 2 (1.0) | 4 (0.7) |
| 11–15 | 16 543 | 104 | 2 (1.0) | 10 (1.8) |
| 16–20 | 6 785 | 103 | 4 (2.0) | 2 (0.3) |
| 21–25 | 2 826 | 98 | 7 (3.5) | 11 (2.2) |
| 26–30 | 869 | 101 | 5 (2.5) | 10 (1.9) |
| Total | 61 679 | 605 | 22 | 43 |
IRT: immunoreactive trypsinogen, OR: odds ratio.
↵1-150 Baseline category (odds ratio of 1 assigned to this stratum).