Figure 4-3: Response rate by contact mode and interview number

Figure 4-3 is a vertical bar chart depicting the SDOH response rate by contact mode and interview number:

• SMS+Email: total response rate = 79.3%*
  
  
• Email only: total response rate = 66.2%*
  
  
• SMS only: total response rate = 55.6%*
  
  
• Letter w/URL: total response rate = 37.5%**
  
  
• Paper: total response rate = 45.0%
  
  
• Total: total response rate = 65.9%

* p<.0001 – Participants contacted by SMS+Email, Email only, and SMS only were significantly more likely to complete the SDOH than those only receiving the Paper questionnaire.

** p<.0005 – Participants contacted by Letter w/URL were significantly less likely to complete the SDOH than those only receiving the Paper questionnaire.

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