Table 4.

Adjusted model of VBAC deliveries by detailed maternal ethnicity Massachusetts births

Ethnicity	1996–2010 AORa [95 % CI]	2006–2010 AORa [95 % CI]
American	1.00 [Reference]	1.00 [Reference]
African American	0.89 [0.81, 0.98]	0.95 [0.78, 1.15]
Native American	0.80 [0.60, 1.07]	0.77 [0.37, 1.61]
Puerto Rican	0.87 [0.80, 0.95]	0.85 [0.71, 1.01]
Dominican	0.79 [0.70, 0.90]	0.88 [0.70, 1.12]
Mexican	1.19 [0.96, 1.47]	1.43 [1.01, 2.02]
Columbian	1.05 [0.82, 1.34]	0.87 [0.50, 1.51]
Salvadoran	1.18 [0.97, 1.43]	1.34 [1.01, 1.91]
Other Central American	1.41 [1.20, 1.66]	1.84 [1.40, 2.41]
Other South American	0.84 [0.84, 0.68]	1.20 [0.82, 1.76]
Other Hispanic	0.95 [0.70, 1.29]	0.82 [0.40, 1.67]
Haitian	0.79 [0.68, 0.92]	0.79 [0.58, 1.08]
Jamaican	0.91 [0.69, 1.20]	0.99 [0.58, 1.72]
Other West Indian/Caribbean	0.97 [0.77, 1.22]	0.82 [0.47, 1.42]
Cape Verdean	1.12 [0.95, 1.33]	1.42 [1.02, 2.00]
Brazilian	0.40 [0.34, 0.47]	0.37 [0.27, 0.50]
Other Portuguese	0.83 [0.71, 0.97]	0.95 [0.62, 1.45]
European	1.07 [1.03, 1.12]	1.25 [1.13, 1.37]
Lebanese	0.87 [0.66, 1.14]	0.72 [0.38, 1.36]
Other Middle Eastern	0.96 [0.79, 1.16]	1.23 [0.89, 1.71]
Nigerian	0.92 [0.70, 1.21]	0.73 [0.39, 1.35]
Other African	0.96 [0.82, 1.12]	1.03 [0.81, 1.31]
Asian Indian	0.94 [0.80, 1.10]	0.98 [0.75, 1.27]
Chinese	1.44 [1.25, 1.66]	1.75 [1.38, 2.23]
Vietnamese	1.65 [1.34, 1.98]	1.72 [1.23, 2.39]
Cambodian	2.11 [1.67, 2.68]	1.83 [1.18, 2.85]
Korean	1.21 [0.93, 1.56]	1.23 [0.80, 1.88]
Filipino	1.18 [0.89, 1.56]	1.47 [0.91, 2.37]
Japanese	1.60 [1.10, 2.33]	1.77[0.93, 3.37]
Other Asian/Pacific Islander	1.22 [1.00, 1.49]	1.35 [0.97, 1.88]
Other	1.18 [1.06, 1.30]	1.40 [1.09, 1.81]

^aModel adjusted for maternal age, parity, year of birth, maternal education, marital status, maternal place of birth, delivery source of payment, prenatal care, birth weight, and hospital of birth