Table 3.

Change in maternal characteristics for infants conceived after 9/11 attack, excluding residents of New York City and the Washington, DC, metropolitan area^a

Maternal Characteristic	Number of Observations	Mean	Post-Event Cohortb
Mother Is African American (%)	29,821,033	14.2	−0.19** (0.03)
Mother’s Years of Education	29,417,747	12.8	0.019** (0.003)
Mother, Some College (%)	29,417,747	45.6	0.37** (0.05)

Notes: Includes all births from January 1, 1995, to December 31, 2003, conceived before March 14, 2002. Robust standard errors are shown in parentheses. Values in bold are significant using the Schwarz criteria. Each regression controls for conception year fixed effects, conception week fixed effects, and mother’s state of residence fixed effects.

Source: Data obtained from National Center of Health Statistics 1995–2002 birth certificates.

^aThe Washington, DC, metropolitan area is defined as the Washington, DC-MD-VA-WV PMSA.

^bConsidered conceived after event if conception week is after August 14, 2001.

^*p < .05;

^**p < .01