Table 1.
Characteristics of the CF sample: overall and by Area Deprivation Index and Child Health Index tertiles (N=9,934)
| Characteristics | Total | Area Deprivation Index (ADI) | Child Health Index (CHI) | ||
|---|---|---|---|---|---|
| Low deprivation 1st tertile | High deprivation 3rd tertile | Best health 1st tertile | Worst health 3rd tertile | ||
| Demographic | |||||
| Age (range 6-18) | 12.5 (3.8) | 12.6 (3.8) | 12.5 (3.7) | 12.5 (3.8) | 12.5 (3.7) |
| Female, % | 49.3 | 49.5 | 51.1 | 49.2 | 49.6 |
| White, % | 90.3 | 91.5 | 86.8*** | 89.8 | 90.5 |
| Public health insurance, % | 53.9 | 37.2 | 72.0*** | 52.0 | 60.2 |
| Clinical | |||||
| ppFEV1 (range 15-149) | 90.2 (18.6) | 91.7 (18.4) | 87.4 (19.2)*** | 92.1 (18.5) | 89.0 (18.7)*** |
| Pulmonary exacerbations (range 0-13) | 0.6 (1.1) | 0.5 (0.3) | 0.7 (1.2)*** | 0.5 (1.0) | 0.7 (1.2)*** |
| ≥2 pulmonary exacerbations, % | 13.5 | 10.8 | 16.2*** | 11.0 | 16.0*** |
| IV treatment nights (range 0-272) | 8.0 (18.0) | 6.39 (15.2) | 9.3 (19.0)*** | 6.5 (16.4) | 9.3 (18.8)*** |
| Newborn screening diagnosis, % | 29.1 | 30.4 | 27.0 | 39.0 | 24.2** |
| P. aeruginosa, % | 34.4 | 31.7 | 37.1*** | 31.0 | 34.4* |
All values are mean (SD) unless otherwise noted.
Boldface indicates statistical significance of the difference between the 1st and 3rd tertile of ADI and CHI: *p<0.05, **p<0.01, ***p<0.001; two-tailed tests.