TABLE 2

EI Enrollment by Fertility Status and Infant and Maternal Characteristics: Massachusetts Singleton Births, July 1, 2004, to December 31, 2008

Prevalence, %
ART (n = 1206 of 6447)Subfertile (n = 960 of 5515)Fertile (n = 50403 of 318 305)
Overall EI enrollment18.717.416.5
Infant characteristics
 Prematurity
  No15.915.815.2
  Yes44.036.936.2
 Gender
  Male23.321.020.6
  Female14.013.712.1
 Abnormal conditions of newborn
  No15.715.614.9
  Yes25.322.020.9
Maternal characteristics
 Age
  <30 years16.514.517.7
  30 to <35 years17.517.814.7
  35 to <40 years19.817.615.8
  40 to <45 years18.817.717.0
  ≥45 years22.225.520.7
 Race/ethnicity
  Hispanic22.223.722.2
  White non-Hispanic18.717.615.7
  Black non-Hispanic20.215.217.7
  Asian/Pacific Islander16.312.411.3
  Other non-Hispanic19.213.215.6
 Marital status
  Married18.717.314.2
  Not married19.019.320.8
 Education
  Less than or no HS/GED20.719.120.0
  Some college/associate degree20.119.916.3
  Bachelor/postgraduate18.116.513.2
 Nativity
  Foreign-born17.016.914.1
  US-born19.117.517.4
 Delivery payer source
  Private18.417.113.7
  Public27.520.820.4
 Cigarettes during pregnancy
  No18.717.415.7
  Yes21.619.625.4
 Prenatal care
  Inadequate/intermediate14.920.617.5
  Adequate16.315.314.4
  Adequate plus21.418.718.5
 Parity
  118.217.415.8
  220.017.316.2
  ≥318.317.818.4
 Complications of labor delivery and risk factors
  No15.314.814.2
  Yes20.018.817.9
  • HS/GED, high school/general educational development.