Table 3. Unadjusted and Adjusted Regression Coefficients for the RHC Compared to the SPQ on Sexual Behavior Measures by Sex of Respondent.

	Males				Females
	No controls		Controlsd		No controls		Controlsd
Measure	Coeff.	p value	Coeff.	p value	Coeff.	p value	Coeff.	p value
Lifetime
Ever had sexa	−0.58	0.046	−0.64	0.045	−0.02	0.942	−0.16	0.552
Age at first sexb	−0.02	0.940	−0.01	0.973	−0.27	0.186	−0.50	0.007
Number of sexual partnersc	−0.22	0.000	−0.25	0.001	−0.08	0.156	−0.05	0.460
More than one sexual partnera	−0.48	0.010	−0.45	0.029	−0.12	0.482	−0.15	0.449
Recent
Had sex in the last yeara	−0.65	0.001	−0.70	0.001	0.04	0.822	0.09	0.654
Number of sexual partnersc	−0.09	0.213	−0.09	0.249	0.13	0.123	0.16	0.072
More than one sexual partnera	−0.06	0.727	−0.06	0.749	1.08	0.000	1.24	0.000
Inconsistent condom usea	−0.20	0.284	−0.17	0.452	0.25	0.195	0.68	0.004

Notes: RHC = Relationship History Calendar; SPQ = Sexual Partnership Questionnaire

Reference category is SPQ

For mean age at first sex, sample includes only those who ever had sex; for inconsistent condom use, sample includes only those who had sex in the last year

^aLogit regression

^bOLS regression

^cNegative binomial regression

^dAdjusted for age, education, marital status, ethnicity, place of birth, economic status, and interviewer dummy variables; the variable ever married is dropped from the regression of ever had sex for females