Table 2.
Comparison of the participants’ characteristics at baseline between those successfully followed up and those lost during follow-up
| Followed up (n = 403) |
Lost to Follow-up (n = 47) |
Test Result | P Value | ||
| Age | t448 = −3.0 | .003 | |||
| Mean (SD) | 41.2 (15.0) | 34.2 (14.8) | |||
| Educationa, n (%) | χ²2 = 0.87 | .65 | |||
| Low, n (%) | 70 (17.4) | 9 (19.1) | |||
| Medium, n (%) | 116 (28.8) | 16 (34.0) | |||
| High, n (%) | 217 (53.8) | 22 (46.8) | |||
| Living arrangement | χ²1 = 5.29 | .02 | |||
| Living with partner, n (%)b | 199 (49.6) | 15 (31.9) | |||
| Employment status | χ²1 = 0.63 | .43 | |||
| Paid employment, n (%)b | 229 (57.1) | 24 (51.1) | |||
| Weekly alcohol intake in standard units | t448) = 1.7 | .09 | |||
| Mean (SD)c | 30.8 (17.0) | 35.2 (17.9) | |||
| Frequency of binge drinking | t448 = 1.1 | .29 | |||
| Mean (SD)d | 2.1 (1.3) | 2.3 (1.2) | |||
a Low = elementary or high school, medium = occupational certificate, high = university or college degree
b Includes 2 missing values
c A standard unit of alcohol contains 10 grams of ethanol
d Frequency of binge drinking defined as frequency of consuming more than 5 units of alcohol on at least one single occasion per week