Group

n

Sex

Age in month (Sd)

Control group (CG)

20

Male: 45.0%

118.20 (6.01)

Intervention group color (E1)

23

Male: 47.8%

120.39 (9.22)

Intervention group black/white (E2)

21

Male: 42.9%

119.52 (7.59)