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

Table 3

Weighted percentage distribution of selected maternal characteristics and birth outcomes in 2007 LAMB study.

	Multilevel sample (MLS) (%)	Final county sample; (FCS) (%)
Total
Unweighted	= 4,518	= 6,264
Weighted	= 151,813	= 151,813
Race/ethnicity
Non-Hispanic White	12.4	16.9
Hispanic	74.1	63.1
Non-Hispanic Black	4.5	7.5
Asian/Pacific Islander	8.3	11.2
Age
<20	11.0	9.4
20–24	22.8	22.1
25–34	50.0	50.0
35+	17.3	18.5
Mother’s years of education
<12	37.8	31.7
=12 (high school diploma or GED)	25.5	25.8
>12	36.7	42.5
Marital status (during delivery)
Married	52.9	55.6
Not married	47.1	44.4
Language(s) usually spoken at home
English	60.9	65.4
Spanish	59.8	50.5
Asian language	5.5	7.0
Other	3.5	4.9
Annual household income
<$20,000	46.0	41.0
$20,000–$39,999	22.1	21.8
$40,000–$59,999	8.4	9.0
$60,000–$99,999	9.6	11.0
$100,000 and more	8.7	11.0
Birth outcomes
Preterm birth	12.2	11.4
Low birth weight	8.0	7.4