Table 1.
Choreography/measures included by each data collection event; National Children’s Study Vanguard performed in twenty-two study locations across the USA, 28 August 2012 to 12 December 2014
| 6-month event | 12-month event | 24-month event* | 36-month event | |
|---|---|---|---|---|
| Weight | X | X | X | X |
| Recumbent length | X | X | X | – |
| Standing height | – | – | X | X |
| Thigh circumference | X | X | X | – |
| Waist circumference | X | X | X | X |
| Head circumference | X | X | X | X |
| Mid-upper arm circumference | X | X | X | X |
| Ulnar length† | X | X | X | – |
| Triceps skinfold | X | X | X | – |
| Subscapular skinfold | X | X | X | – |
| Blood pressure‡ | – | X | X | X |
*
Prior to 2 July 2014, recumbent length was collected at the 24-month collection event. After 2 July 2014, standing height was collected at the 24-month collection event.
†
As of 12 June 2014, ulnar length was collected via two distinct protocols.
‡
As of 15 January 2014, blood pressure measurements were discontinued at the 12- and 24-month collection events.