Table 1 Descriptive characteristics of patients with keratoconus who did and did not undergo corneal transplantation.
From: Corneal transplantation for keratoconus in South Korea
Corneal transplantation | P value* | ||
|---|---|---|---|
No (n = 10,488) | Yes (n = 124) | ||
Age group (years) | 26.22 ± 6.83 | 26.01 ± 6.42 | 0.746 |
10–19 | 1987 (18.95%) | 25 (20.16%) | 0.895 |
20–29 | 4926 (46.97%) | 56 (45.16%) | |
30–39 | 3575 (34.09%) | 43 (34.68%) | |
Sex (male) | < 0.001 | ||
Male | 5473 (52.18%) | 88 (70.97%) | |
Female | 5015 (47.82%) | 36 (29.03%) | |
Income level | 0.624 | ||
Quartile 1 (low income) | 2251 (21.46%) | 24 (19.35%) | |
Quartile 2 | 2466 (23.51%) | 25 (20.16%) | |
Quartile 3 | 2993 (28.54%) | 41 (33.06%) | |
Quartile 4 (high income) | 2778 (26.49%) | 34 (27.42%) | |
Baseline comorbidities | |||
Hypertension | 153 (1.46%) | 1 (0.81%) | 1.000 |
Diabetes mellitus | 460 (4.39%) | 1 (0.81%) | 0.045 |
Dyslipidemia | 447 (4.26%) | 4 (3.23%) | 0.821 |
Atopic dermatitis | 500 (4.77%) | 7 (5.65%) | 0.668 |
Atopic dermatitis (severe) | 240 (2.29%) | 6 (4.84%) | 0.069 |
Asthma | 763 (7.27%) | 6 (4.84%) | 0.383 |
Allergic rhinitis | 4997 (47.64%) | 54 (43.55%) | 0.368 |
Collagen vascular disease | 40 (0.38%) | 1 (0.81%) | 0.383 |
Aortic aneurysm | 1 (0.01%) | 0 (0.00%) | 1.000 |
Mitral valve prolapse | 0 (0.00%) | 0 (0.00%) | – |
Obstructive sleep apnea | 9 (0.09%) | 1 (0.81%) | 0.111 |
Intellectual disability | 51 (0.49%) | 4 (3.23%) | 0.004 |
Down syndrome | 17 (0.16%) | 2 (1.61%) | 0.020 |
Turner syndrome | 0 (0.00%) | 0 (0.00%) | – |
Marfan syndrome | 1 (0.01%) | 0 (0.00%) | 1.000 |
Ehlers–Danlos syndrome | 0 (0.00%) | 0 (0.00%) | – |
Osteogenesis imperfecta | 1 (0.01%) | 0 (0.00%) | 1.000 |
