Table 2 Descriptive and nonparametric test statistics for key variables by referred and comparison mothers

Age (s.d., years)

31.3 (7.38)

31.3 (6.64)

U = 2438.5, z = .250

Education (%):

χ²(2) = 29.32***

   <high school

47.4

9.1

   high school/GED

29.6

21.2

   some college/college degree

23.0

69.6

Self-reported current drinking problem (%)

31.6

12.1

χ²(1) = 5.08*

PD-6:

   mean scale score (s.d.)

3.57 (3.10)

1.48 (1.39)

U = 1492.5, z = 3.68***

% at cut point ≥7

(scale range: 0-12)

19.1

0