Table 1.

Women With a Previous Cesarean Section Delivery Who Attempted Vaginal Birth, by Maternal Demographic Characteristics and Study Period, California, 1996–2002

	Attempt VBAC (%)
Maternal Characteristics	1996 – 1999	2000 – 2002	Decrease (%)
*χ² test; P <.001 for difference between time frames.
Overall*	24.0	13.5	44
Age, years*
<20	26.6	11.7	56
20–29	25.2	13.9	45
30–39	23.3	13.4	42
40–49	19.3	11.2	42
Race/ethnicity*
White	25.6	14.0	45
Hispanic	22.6	12.6	44
Black	21.6	14.3	34
Asian	29.5	17.5	41
Other	25.6	14.7	43
Education*
Less than high school	22.6	12.4	45
High school	23.3	13.1	44
Some college	25.2	14.5	42
College degree	27.2	15.2	44
Hospital status*
Rural	27.3	14.8	46
Urban	23.8	13.4	44
Pregnancy complication*
Yes	28.1	18.0	36
No	22.8	12.5	45