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. Author manuscript; available in PMC: 2011 May 16.
Published in final edited form as: Arch Pediatr Adolesc Med. 2011 Jan;165(1):33–41. doi: 10.1001/archpediatrics.2010.254

Table 1.

Characteristics at Enrollment and 6 Monthsa

Characteristic Enrollment (Birth)
6-Month Assessment
VIP (n=225) BB (n=225) Control (n=225) VIP (n=126) BB (n=150) Control (n=134)
Mother, %
 Hispanic/Latina 92.4 93.8 88.9 91.3 95.3 92.5
 Immigrant 87.6 80.9 82.7 89.7 86.0 88.1
 Spanish as primary language 78.2 73.8 75.6 80.2 79.3 85.8
 Married or living with partner 83.1 83.1 83.6 82.5 86.7 82.8
 Maternal educational level, mean (SD)b 10.0 (3.7) 10.5 (3.7) 10.5 (3.5) 10.2 (3.7) 10.3 (3.7) 9.6 (3.5)
Maternal literacy, word reading, mean (SD)c NA NA NA 12.4 (4.8) 12.5 (5.0) 12.6 (4.6)
Maternal low SES, %d 90.5 88.1 90.9 89.7 87.9 91.7
Maternal social risk factors, %e 23.9 22.3 24.9 26.4 22.0 22.0
Child, %
 Female sex 52.9 45.3 48.9 54.0 51.3 50.0
 Firstborn 42.2 41.3 39.1 42.1 40.7 41.8

Abbreviations: BB, Building Blocks; NA, not applicable; SES, socioeconomic status; VIP, Video Interaction Project.

a

All differences were insignificant at enrollment and at 6-month assessments.

b

Last grade completed.

c

Grade level for word reading, measured at 6 months.

d

Hollingshead SES level of 4 or 5.

e

One or more of the following conditions: homeless, physically abused, involved with Child Protective Services, limited or late prenatal care (defined as beginning beyond the third month of pregnancy), or a history of mental illness.