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. 2014 Dec 11;2014:293648. doi: 10.1155/2014/293648

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 N = 4,518 N = 6,264
 Weighted N = 151,813 N = 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