Table 3.
Completion rates of study surveys by survey items
| Survey items 1 | N (Percent) |
|---|---|
| Total N accessing the survey app | 35,973 |
| HOP general consent | 31,147 (86.6%) |
| Behaviors | 25,266 (70.2%) |
| Cancer history | 22,621 (62.9%) |
| Colorectal history | 19,746 (54.9%) |
| Lifestyle | 20,099 (55.9%) |
| Perceived Stress | 18,358 (52.1%) |
| COVID and cancer 2 | 1900 (5.3%) |
| Impulsivity 3 | 11,665 (33.1%) |
| Test of reaction time (vigilance) 3 | 9945 (28.2%) |
| Results feedback | 9200 (25.6%) |
1
The survey completion rates results were mainly based on data from the start of the study 12/01/2018 to 01/20/2023. The perceived stress, impulsivity and vigilance results were based on data from the study start date to 12/09/2022 (total N = 35,213). All surveys are available to all participants via the app, including those added at different dates. However, participants are only required to complete the initial demographics and consents surveys.
2
The COVID and cancer survey was later added into the HOP app as part of an NIH supplement grant, which was mostly active during Aug. 2020–Jan. 2021.
3
Impulsivity and vigilance surveys were later added into the HOP app on 08/03/2021.