Table 3.

Bivariate Probit Regression Results for Single and Married Female RNs: Dependent Variable Working (versus Not Working) (ρ Is Significant)

	Single Female (n=5,018†), Log likelihood Function=−3,773.65, 83.2% Work				Married Female (n=11,613†), Log Likelihood Function=−11,977.95, 80.5% Work
	Function=−3,773.65, 83.2% Work				Function=−11,977.95, 80.5% Work
Explanatory Variable* (Reference Category in Parentheses)	Coefficient	p[∣Z∣>z]	Marginal Effects	Mean	Coefficient	p [|Z|>z]	Marginal Effects	Mean
Constant	8.149	.000	0.002		11.693	.000	1.642	—
Log other income	−0.851	.000	−0.2E−03	6.181	−0.915	.000	−0.123	10.398
Medical, surgical and other specialists per 1,000 population	0.068	.262	0.2E−04	1.772	0.094	.000	0.013	1.734
Percent of HMO hospital services paid through fee schedule	0.003	.317	0.1E−05	14.581	0.005	.000	0.001	15.512
Age 50–54 (<25)	−0.705	.004	−0.001	0.141	−0.301	.054	−0.036	0.123
Age 55–59 (<25)	−0.724	.004	−0.001	0.094	−0.693	.000	−0.120	0.089
Age 60–64 (<25)	−1.327	.000	−0.004	0.070	−1.453	.000	−0.383	0.051
Age ≥ 65 (<25)	−1.893	.000	−0.017	0.082	−2.325	.000	−0.699	0.038
Education—diploma (associate degree)	−0.037	.669	−0.2E−04	0.219	−0.101	.013	−0.015	0.229
Education—masters (associate degree)	0.525	.001	0.7E−04	0.116	0.339	.000	0.040	0.111
Part-time student (full-time student)	1.010	.000	0.9E−04	0.060	0.683	.000	0.060	0.046
Not student (full-time student)	0.458	.035	0.3E−03	0.921	0.261	.024	0.048	0.939
Children at home—all < 6 years (no children at home)	−0.120	.576	−0.4E−04	0.027	−0.241	.000	−0.045	0.115
Children at home—all > 6 years (no children at home)	0.241	.001	0.6E−04	0.276	0.141	.000	0.017	0.410
Children at home—some < 6, some > 6 (no children at home)	0.344	.060	0.6E−04	0.029	−0.301	.000	−0.056	0.109
Prior employment—licensed practice/vocational nurse (nurse aide)	−0.123	.323	−0.4E−04	0.103	0.162	.013	0.021	0.079
Prior employment—allied health (nurse aide)	0.101	.543	0.2E−04	0.038	0.224	.009	0.029	0.036
Prior employment—other health (nurse aide)	0.025	.902	−0.1E−04	0.023	−0.870	.012	−0.242	0.001
ρ	−0.564	.000			−0.820	.000

^*Excluded from this table are insignificant variable categories: log RN hourly wage, primary care practitioners per 1,000 population, percent uninsured population, index of competition, % non-HMO Medicaid beneficiaries as % of total MSA population; unemployment rate; small MSA; large MSA; age groups of 25–29, 30–34, 35–39, 40–44, and 45–49; race; baccalaureate degree as highest nursing education; prior employment as managerial and other; and not having previous health job.

^†Each sample size is shown is the observed number, not the weighted number.

RN, registered nurse; HMO, health maintenance organization.