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Ambient noise levels LAeq according to both number of call and number of EMDC workers
| Number of people on duty | |||
|---|---|---|---|
| Number of calls | 8–9 | 10–17 | 18–20 |
| 0 | 56.3 | 59.3 | 63.4 |
| 1–2 | 56.5 | 59.0 | 61.5 |
| ≥3 | 57.7 | 59.2 | 61.1 |
The interaction between the number of calls and the numbers of EDMC workers was associated to a P-value lower then 10−3 in the two-level multivariable linear regression model
