Table 2.
Readability levels calculated by Flesch Reading Ease Formula (FRE), Flesch–Kincaid Grade Level (FKGL), Fog Scale (Fog), SMOG Index (SMOG), Coleman–Liau Index (CLI), Automated Readability Index (ARI), Linsear Write Formula (LW), and Text Readability Consensus Grade Level (Consensus)
| Hospitals with unique consent forms | Health system | FRE | FKGL | Fog | SMOG | CLI | ARI | LW | Consensus |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Private hospital system 1 | 41.1 | 11.8 | 14.9 | 11.4 | 13 | 11.8 | 12.5 | 12 |
| 2 | Private hospital system 2 | 27.8 | 15.2 | 18 | 13.9 | 13 | 14.7 | 17.5 | 15 |
| 3 | Private hospital system 2 | 46.5 | 10.4 | 14.5 | 10.6 | 13 | 10.2 | 10.6 | 11 |
| 4 | Independent | 32.1 | 14.1 | 18 | 13.1 | 14 | 14.6 | 15.8 | 14 |
| 5 | Independent | 30.1 | 15.5 | 18.7 | 13.7 | 14 | 16.9 | 18.6 | 16 |
| 6 | Independent | 2.7 | 22.6 | 20.7 | 18.8 | 15 | 24.7 | 30.4 | 22 |
| 7 | Independent | 28.3 | 15.1 | 18.4 | 13.9 | 14 | 15.6 | 17.5 | 15 |
| 8 | Independent | 14 | 20.7 | 22.6 | 18 | 14 | 22.7 | 28.8 | 21 |
| 9 | State owned | 30.5 | 14.2 | 17.1 | 13.3 | 15 | 15.4 | 15.9 | 15 |
| 10 | Federally owned | 35 | 12.9 | 14.8 | 12 | 14 | 12.9 | 13.4 | 13 |
| 11 | Federally owned | 41.3 | 11.4 | 14.5 | 11 | 13 | 11 | 11.4 | 11 |
| Average ± SD | – | 29.9 ± 12.5 | 14.9 ± 3.8 | 17.5 ± 2.7 | 13.6 ± 2.6 | 13.8 ± 0.8 | 15.5 ± 4.6 | 17.5 ± 6.5 | 15.0 ± 3.6 |