whether waist measurements are valid
| Value label | Value | Absolute frequency | Relative frequency |
|---|---|---|---|
| usable 1st & 2nd measurement | 1 | 15340.00 | 98.04% |
| usable 1st & 3rd measurement | 2 | 1.00 | 0.01% |
| usable 1st & 2nd & 3rd measurement | 4 | 12.00 | 0.08% |
| not usable: unreliable | 5 | 30.00 | 0.19% |
| not usable: difference >3cm | 6 | 3.00 | 0.02% |
| partial response | 7 | 18.00 | 0.12% |
| not attempted | 9 | 242.00 | 1.55% |
| Total | 15646.00 | 100.00% |
