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Table 2 Engagement with treatment assignment (n = 1689)

From: The effectiveness of an online intervention in preventing excessive gestational weight gain: the e-moms roc randomized controlled trial

Indicator of engagementa Placebo control n = 563 Intervention n = 1126
Logged into study web site at least once, n (%) 473 (84.0) 946 (84.0)
Week of pregnancy of first login 11.8 (8.9, 15.4) 12.0 (8.6, 16.0)
Logged-in each 45 days of participation (adherent), n (%) 195 (34.6) 519 (46.1)
Number of days with access to website 199 (166, 220) 196 (161, 220)
Percent of access days with a login 3.2 (0.9, 6.7) 5.6 (0.2, 11.7)
Number of logins for treatmentb 6 (2, 14) 10 (2, 24)
Number of web page views 15 (2, 48) 24 (3,62)
Number of web page views of control content 15 (2, 48) 17 (3, 48)
Number of web page views of behavior change tool content 0 (0, 0) 6 (0, 14)
  1. aTable entries are median (25th percentile, 75th percentile) unless otherwise noted
  2. bThis excludes logins for questionnaire completion and other study administrative tasks