Table 1. Model Parameters for the Decade-Long Models of Note Length and Redundancy, 2009-2018.
| Factor | Note length increase, % (95% CI) | Note redundancy increase (95% CI), percentage point |
|---|---|---|
| Encounter year (per year) | 2.4 (1.4 to 3.5) | 0.7 (0.5 to 1.0) |
| Author start year (per year) | 1.8 (1.3 to 2.4) | 0.2 (0.03 to 0.3) |
| Author is resident or fellow | 26.3 (25.8 to 26.7) | −7.0 (−6.7 to −7.3) |
| Billing: level 4 vs level 3 | 27.9 (27.7 to 28.2) | −1.9 (−1.8 to −2.0) |
| Billing: new vs return patienta | 32.2 (31.9 to 32.4) | −16.7 (−16.2 to −17.1) |
| No. of prior visits (per visit) | 0.1 (0.1 to 0.1) | 0.04 (0.04 to 0.04) |
a
Return visits where patients last saw their clinician 3 or more years previously were still billed as new patient visits, enabling analysis of the redundancy of 7369 notes written for return new patient visits.