Table 1 Proxy for AD severity: moderate to severe: at least 1 prescription claim of systemic corticosteroid, systemic immunosuppressants, or phototherapy.

From: Population-based cohort study to investigate the changes in prevalence, severity profile, and treatment modalities used in Korean atopic dermatitis patients

Age group

Total

0–1 year

2–12 years

12–19 years

 ≥ 20 years

Total number of patients

355,277

85,995

83,735

20,507

165,040

Mild (%)

249,336 (70.18)

78,955 (91.81)

62,951 (75.18)

11,491 (56.03)

95,939 (58.13)

Moderate to severe (%)

105,941 (29.82)

7040 (8.19)

20,784 (24.82)

9016 (43.97)

69,101 (41.87)