| Description: | Spirometry device serial number (pilot) | 
| Category: | Assessment centre ⏵ Physical measures ⏵ Spirometry | 
| Physical measures + Pilot assessment | 
| Participants | 3,420 | Value Type | Text | Sexed | Both sexes | Debut | Jan 2012 | |||
| Item count | 3,420 | Item Type | Data | Instances | Defined (1) | Version | N/A | |||
| Stability | Complete | Strata | Auxiliary | Array | No | Cost Tier | o1 s1 | 












