Summary statistics for key variables (N=19 650)
| Panel A: sample composition | ||
| Count | % of sample | |
| Query resolution type | ||
| Electronic query only | 18 022 | 92 |
| Verbal clarification request | 1628 | 8 |
| Query year | ||
| 2014 | 1853 | 9 |
| 2015 | 4371 | 22 |
| 2016 | 6210 | 32 |
| 2017 | 6269 | 32 |
| 2018 | 947 | 5 |
| Panel B: means and inter-quartile ranges (IQRs) | ||
| Mean | IQR | |
| Resolution time (hours) | 26 | 5–93 |
| Length of stay at time of query (days) | 5 | 2–10 |