From: Pigmentary mosaicism: a review of original literature and recommendations for future handling
 | Hyperpigmentation | Hypopigmentation | Hyper- and hypopigmentation |
---|---|---|---|
At birth | 51 | 106 | 17 |
Within 6Â weeks | 12 | 12 | 1 |
6 weeks – 1 year | 34 | 42 | 7 |
1 year – 2 years | 9 | 46 | 2 |
After the age of 2Â years | 15 | 18 | 5 |
NA | 157 | 100 | 16 |
Total | 278 | 324 | 48 |