Table 4.
Participants compared by sex.
| Characteristics | Women | Men | Test statistic | P value | ||
|
|
|
|
Chi-square (df) | t test (df) |
|
|
| Number of participants | 631 | 278 | N/Aa | N/A | N/A | |
| Reason for interest, n (%) | ||||||
|
|
Sleep (interest) | 433 (68.6) | 193 (69.4) | 0.1 (1) | N/A | .81 |
|
|
Sleep (concern) | 497 (78.8) | 228 (82.0) | 1.3 (1) | N/A | .26 |
|
|
Alcohol (interest) | 101 (16.0) | 64 (23.0) | 6.4 (1) | N/A | .01 |
|
|
Alcohol (concern) | 26 (4.1) | 23 (8.3) | 6.5 (1) | N/A | .01 |
|
|
Sleep-alcohol connection (interest) | 368 (58.3) | 179 (64.4) | 3.0 (1) | N/A | .09 |
| Age (years), mean (SD) | 21.1 (2.3) | 21.0 (2.2) | N/A | 1.422 (908) | .23 | |
| Smartphone, n (%) | ||||||
|
|
iPhone | 572 (90.6) | 225 (80.9) | 16.9 (2) | N/A | <.001 |
|
|
Android | 59 (9.4) | 53 (19.1) | N/A | N/A | N/A |
| Sleep quality on 1-5 scale, mean (SD)b | 2.8 (0.9) | 2.7 (0.9) | N/A | 1.011 (827) | .315 | |
| AUDIT-Cc above high-risk cutoff (≥5 women and ≥7 men) | 238 (37.8) | 78 (28.2) | 7.9 (1) | N/A | .005 | |
aN/A: not applicable.
aExcludes 9% (56/631) of women and 9% (25/278) of men because they chose not to answer this question.
bAUDIT-C: consumption questions of the Alcohol Use Disorders Identification Test.