Androstenedione

Pediatrics:
Premature infants:
26-28 weeks, day 4: 0.92-2.82
31-35 weeks, day 4: 0.80-4.46
Full-term infants:
1-7 days: 0.20-2.90
1 month- 1 year: <0.69
Males:
Tanner Stages:
Stage I (prepubertal) <9.8 yrs: <0.51
Stage II 9.8-14.5 yrs: 0.31-0.65
Stage III 10.7-15.4 yrs: 0.50-1.0
Stage IV 11.8-16.2 yrs: 0.48-1.4
Stage V 12.8-17.3 yrs: 0.65-2.1
Females:
Tanner Stages:
Stage I (prepubertal) <9.2 yrs: <0.51
Stage II 9.2-13.7 yrs: 0.42-1.0
Stage III 10-14.4 yrs: 0.8-1.9

Stage IV 10.7-15.6 yrs: 0.77-2.25
Stage V 11.8-18.6 yrs: 0.8-2.4

Adults:
Males: 0.4-1.5
Females: 0.3-2.0