Table 1.
Referral and attraction mechanisms.
| Characteristics | Ineligible upon web screening | Eligible upon web screening but not enrolled | Enrolled | Chi-square (df) | P value | |
| Participants, n | 592 | 290 | 27 | N/Aa | N/A | |
| Referral source, n (%) | ||||||
|
|
Facebook or Instagram | 554 (93.6) | 264 (91.0) | 21 (77.8)b | 10.0 (2) | .01 |
|
|
Snapchat | 38 (6.4) | 26 (9.0) | 6 (22.2) | N/A | N/A |
| Reason for interest, n (%) | ||||||
|
|
Sleep (interest) | 438 (74.0) | 174 (60.0)b | 14 (59.1)b | 21.5 (2) | <.001 |
|
|
Sleep (concern) | 466 (78.7) | 235 (81.0) | 24 (88.9) | 2.1 (2) | .35 |
|
|
Alcohol (interest) | 73 (12.3) | 83 (28.6)b | 9 (33.3)b | 39.1 (2) | <.001 |
|
|
Alcohol (concern) | 14 (2.4) | 29 (10.0)b | 6 (22.2)b | 37.7 (2) | <.001 |
|
|
Sleep-alcohol connection (interest) | 294 (49.7) | 232 (80.0)b | 21 (77.8)b | 78.4 (2) | <.001 |
aN/A: not applicable.
bGreater than ineligible upon web screening (Bonferonni-adjusted Q<0.05).