Fig 1.
Process of recruiting NYC residents to Healthy NYC panel.
Fig 2.
Types of contact information provided by panelists and types of invitations sent to panelists.
The types of initial invitations and reminders that sampled panelists received for any given survey were determined by the types of contact information they provided when they registered for Healthy NYC. *Panelists who provided a cellphone number were asked if this was a smartphone that they could use to take surveys and were then asked to consent to receive text messages. †Due to budgetary and operational limitations, not all panelists who provided a mailing address received mailed paper surveys or push-to-web invitations if they provided any other contact information.
Table 1.
Sociodemographic characteristics of Healthy NYC panelists as of June 2021 vs. sampled panelists among the six surveys.
Table 2.
Odds of providing an email contact at the time of Healthy NYC enrollment (n = 7,709)**.
Table 3.
Odds of providing a text contact at the time of Healthy NYC enrollment (n = 8,367)**.
Table 4.
Odds of providing a mailing address at the time of Healthy NYC enrollment (n = 8,110)1, **.
Fig 3.
Invite mode that led to response across the six surveys (n = 4,729).
Table 5.
Odds of responding to an email invitation1.
Table 6.
Odds of responding to a text invitation1.
Table 7.
Odds of responding to a mail (paper survey) invitation1.
Table 8.
Odds of responding to a mail (push-to-web) letter invitation1, 2.
Fig 4.
Number of invites participants received before response (by the total number of respondents for that survey).
Fig 5.
Percentage of invite mode that led to responses by month with overall response rate.
Table 9.
Poisson regression table of age with number of invitations received before participating in a survey (including and excluding mail invitations).