Participants who were difficult to recruit at baseline are less likely to complete a follow-up questionnaire – results from the German National Cohort

RT @cochranemthds: Participants who were difficult to recruit at baseline are less likely to complete a follow-up questionnaire – results f…

RT @cochranemthds: Participants who were difficult to recruit at baseline are less likely to complete a follow-up questionnaire – results f…

RT @NAKO_Studie: How effective are additional measures to increase the likelihood for Participants, who were recruited with some difficulty…

How effective are additional measures to increase the likelihood for Participants, who were recruited with some difficulty, to complete a follow-up questionnaire? Read here: https://t.co/FvPcI8fW7m #nako #gesundheitsstudie