Research Article

The 2007 Los Angeles Mommy and Baby Study: A Multilevel, Population-Based Study of Maternal and Infant Health in Los Angeles County

Table 2

Comparison of 2007 LAMB surveys sent and completed by race-ethnicity among the multilevel (MLS) and final county (FCS) samples (crude response rate).

Race/ethnicityNumber of women sampledNumber of completed surveys returnedCrude response rate (%) (number of completed surveys/number of women sampled)

Total
 MLS12,6754,518 35.6%
 FCS17,5706,264 35.7%
Non-Hispanic White
 MLS2,087880 42.2%
 FCS3,0841,308 42.4%
Non-Hispanic Black
 MLS937272 29.0%
 FCS3,244987 30.4%
Hispanic
 MLS8,0382,760 34.3%
 FCS8,3192,887 34.7%
Asian/Pacific Islander
 MLS1,509557 36.9%
 FCS2,686987 36.7%