Table 4.
Participant characteristics and survey outcomes within the incentive arm of the trial, by participant response to financial incentivea.
| Variable | Incentive declined (n=203), n (%) or median (IQRb) |
Incentive claimed (n=111) , n (%) or median (IQR) |
P c | |
| Male, n (%) | 160 (78.8) | 99 (89.2) | .03 | |
| Specialty, n (%) |
|
|
.17 | |
|
|
Medicine | 128 (63.1) | 68 (61.3) |
|
|
|
Surgery | 43 (21.2) | 17 (15.3) |
|
|
|
Anesthesia | 32 (15.8) | 26 (23.4) |
|
| Years since residency, median (IQR) | 19 (13-27) | 15 (10-22) | .004 | |
| Region of residency d , n (%) |
|
|
.63 | |
|
|
Northeast | 68 (33.5) | 33 (29.7) |
|
|
|
Midwest | 55 (27.1) | 24 (21.6) |
|
|
|
South | 44 (21.7) | 30 (27.0) |
|
|
|
West | 25 (12.3) | 10 (9.0) |
|
|
|
International | 6 (3.0) | 4 (3.6) |
|
|
|
Unknown | 5 (2.5) | 10 (9.0) |
|
| Days to response among responders, median (IQR) | 0.5 (0.2-13.4) | 2.9 (0.3-18.5) | .10 | |
| Minutes spent completing survey, median (IQR) |
3.7 (2.4-5.5) | 4.2 (2.6-5.5) | .66 | |
aPercentages may not sum to 100% due to rounding.
bInterquartile range (IQR).
cCalculated using Fisher’s exact test, the chi-square test for proportions, and the Wilcoxon-Mann-Whitney test for continuous variables.
dRegion defined according to US census region.