. Author manuscript; available in PMC: 2010 Jan 1.

Published in final edited form as: Int J Methods Psychiatr Res. 2009 Jun;18(2):69–83. doi: 10.1002/mpr.279

Table 3.

Ratios of design-based variance estimates of selected descriptive statistics in the household sample (H) relative to the school sample (S)

	Variance ratios
	Mean	Trimmed mean^a	Median
I. DSM-IV/CIDI disorder prevalence estimates^b
Prevalence	6.9	6.2	7.5
II. Predictive effects of socio-demographic variables on disorder prevalence^c
Age	7.6	6.6	7.1
Sex	5.9	6.0	5.1
Race-ethnicity	4.1	3.2	2.6
Parent education	5.1	5.0	4.8

Mean among observations in the 25^th–75^th percentile range on the distribution of variance ratios.

Lifetime, 12-month, and 30-day prevalence estimates of any DSM-IV/CIDI mood disorder, anxiety disorder, impulse-control disorder, substance disorder, and any disorder.

Based on multivariate logistic regression equations to predict each of the 15 outcomes in Part I of the table.