Table 1

Comparison of selected baseline characteristics between participants retained for analysis and those lost to follow-up. AdoQuest 2005.
Retained (n = 1025) Lost to follow-up (n = 632) p-value for difference
Girls, % 55.4 53.2 0.414
Age, mean (sd) 10.8 (0.5) 10.8 (0.6) 0.090
Mother university-educated, % 27.9 18.4 0.000
Annual household income (CAN$)*, %
<30,000 9.3 8.8 0.996
30,000-99,999 62.5 61.9
≥100,000 28.2 29.3

* Excludes participants with missing data.

Low et al.

Low et al. BMC Psychiatry 2012 12:116   doi:10.1186/1471-244X-12-116

Open Data