whether bp readings are valid
| Value label | Value | Absolute frequency | Relative frequency |
|---|---|---|---|
| valid bp measurement | 1 | 12771.00 | 81.62% |
| ate, drank, smoked, exercised in previous half hour | 2 | 2563.00 | 16.38% |
| three valid readings not obtained | 4 | 102.00 | 0.65% |
| refused, not obtained, not attempted | 6 | 210.00 | 1.34% |
| Total | 15646.00 | 100.00% |
