Descriptive characteristics of the study population
| Age (years) | Duration of symptoms (months) | VISA-A score | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | 95% CI | Mean | SD | 95% CI | Mean | SD | 95% CI | |
| *Although a total of five control subjects had Achilles tendon symptoms for 0.5–2 months, they are not tabled here as they are not representative of the group. | |||||||||
| Group 1 (n=45, 18F, 27M) | 42.3 | 11.4 | 38.9 to 45.7 | 21.0 | 25.5 | 7.7 to 23.1 | 64 | 17 | 59 to 69 |
| Group 2 (n=14, 6F, 8M) | 44.3 | 14.8 | 35.4 to 53.3 | 19.2 | 4.1 | 14.8 to 19.2 | 44 | 28 | 28 to 60 |
| Group 3 (n=63, 31F, 32M) | 23.0 | 2.9 | 22.3 to 23.7 | N/A* | 96 | 7 | 94 to 98 | ||
| Group 4 (n=20, 9F, 11M) | 40.9 | 9.1 | 38.7 to 43.1 | N/A* | 98 | 3 | 97 to 99 | ||