Table 3.

Negative binomial models for wait time and retention within non-pregnant women at admission.

	Wait time		Retention
	IRR	95% CI	IRR	95% CI
Year	0.862⁎⁎⁎	0.844, 0.881	1.000	0.992, 1.009
Age	1.007*	1.001, 1.012	1.005⁎⁎⁎	1.003, 1.007
Racea
Black	1.039	0.854, 1.263	1.206⁎⁎⁎	1.121, 1.299
Latina	1.874⁎⁎⁎	1.657, 2.119	0.982	0.936, 1.030
Other	1.196	0.923, 1.548	1.035	0.936, 1.145
Education (years)	0.995	0.973, 1.018	0.992	0.983, 1.001
Employed	0.618⁎⁎⁎	0.500, 0.765	0.871⁎⁎⁎	0.804, 0.943
Homeless	1.510⁎⁎⁎	1.339, 1.704	1.211⁎⁎⁎	1.154, 1.271
Mental health issues	0.959	0.858, 1.072	0.973	0.932, 1.017
Age using primary drug	1.005	0.999, 1.011	0.993⁎⁎⁎	0.991, 0.996
Days using primary drug	1.000	0.995, 1.005	0.957⁎⁎⁎	0.955, 0.959
# Children under 18	1.002	0.975, 1.030	0.975⁎⁎⁎	0.964, 0.986
Medi-cal eligible	0.761⁎⁎⁎	0.664, 0.872	1.219⁎⁎⁎	1.158, 1.283
# prior episodes	1.051⁎⁎⁎	1.040, 1.062	1.004	1.000, 1.009
Treatment typeb
MOUD	0.064⁎⁎⁎	0.054, 0.075	2.904⁎⁎	2.742, 3.075
counseling	0.244⁎⁎⁎	0.203, 0.292	2.184⁎⁎⁎	2.034, 2.344
Mandated referral	1.552⁎⁎⁎	1.286, 1.873	1.343⁎⁎⁎	1.245, 1.448
# observations	N = 11,792		N = 11,594

^aWhite as reference;.

^bResidential as reference.

^⁎p < 0.05,.

^⁎⁎p < 0.01,.

^⁎⁎⁎p < 0.001.