Table 1. Participant demographics.

Sample Characteristic	Wife (N = 178) n %		Husband (N = 178) n %
Educationa
Did not complete high school	3	1.7	7	4.0
Completed high school	36	20.6	33	18.9
Postsecondary education/training	136	77.7	135	77.1
Employmentb
Employed	63	36.2	67	38.3
Homemaker	13	7.5
Unemployed/retired	98	56.3	108	61.7
Income
Less than $50,000	–	–	45	32.4
$50,000-$99,999	–	–	59	42.4
$100,000 or more	–	–	35	25.2
OXTRc
AA	17	9.6	16	9.0
AG	62	47.8	71	39.9
GG	93	52.2	81	45.5
Hardy-Weinberg-Equilibriumd	X2 = 1.87, p = 0.171		X2 = 0.01, p = 0.938
Racee
White	169	96.6	164	93.7
Black	1	.6	2	1.1
Other	5	2.9	9	5.1
Childrenf
Yes	132	77.2	136	78.6
No	39	22.8	37	21.4

^a6 spouses did not report information on education.

^b7 spouses did not report on employment status.

^c6 wives and 10 husbands did not have genotyping results

^d Combined Hardy-Weinberg- Equilibrium (X2 = 1.03, p = 0.309)

^e6 spouses did not report race.

^f12 spouses did not report on children