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. 2011 Oct;46(5):1473–1494. doi: 10.1111/j.1475-6773.2011.01267.x

Table 3.

Results for Simultaneous Equation Estimation

Equation 1 QDTS_“Content Received” Equation 2 “QDTS_Delivery” Equation 3 RHDS Equation 4 Unplanned Related Postdischarge Utilization




Emergency Department Readmission

95% CI 95% CI 95% CI 95% CI 95% CI





B SE Lower Upper p>z B SE Lower Upper p>z B SE Lower Upper p>z OR SE Lower Upper p>z OR SE Lower Upper p>z
RHDS 0.76 0.11 0.57 1.00 0.05 0.88 0.08 0.74 1.05 0.17
QDTS delivery 0.35 0.02 0.30 0.40 0.00 1.11 0.13 0.88 1.39 0.36 1.11 0.08 0.97 1.27 0.13
QDTS received 0.07 0.02 0.03 0.11 0.00 0.99 0.08 0.84 1.17 0.93 1.00 0.06 0.89 1.13 0.77
RN nonovertime # −0.05 0.14 −0.32 0.23 0.74 0.27 0.13 0.01 0.53 0.04 −0.08 0.08 −0.24 0.09 0.37 1.73 0.74 0.75 4.00 0.20 0.56 0.15 0.33 0.93 0.04
Non-RN nonovertime # −0.03 0.09 −0.22 0.15 0.73 0.04 0.08 −0.12 0.20 0.60 0.05 0.05 −0.05 0.15 0.36 1.20 0.41 0.61 2.35 0.59 0.83 0.15 0.58 1.19 0.60
RN overtime # −0.17 0.09 −0.34 0.00 0.06 −0.16 0.09 −0.34 0.01 0.07 0.00 0.05 −0.10 0.11 0.95 1.70 0.44 1.02 2.83 0.04 1.23 0.21 0.88 1.73 0.34
Non-RN overtime # 0.10 0.08 −0.06 0.26 0.22 −0.03 0.09 −0.20 0.14 0.76 −0.06 0.05 −0.17 0.04 0.24 0.78 0.21 0.46 1.33 0.37 0.87 0.15 0.63 1.21 0.60
R2 0.51 0.12 0.37 0.17

Notes. The model was estimated using the simultaneous equations method with robust (cluster-adjusted) standard errors. Estimates are from linear regressions for equations 1, 2, and 3 and multinomial logistic regression for equation 4. All equations include unit and hospital-level fixed effects, a linear time trend, unit level controls for admission–discharge ratio and RN vacancy rate, and patient-level controls for age, sex, race, socioeconomic status, lives alone, MDC, severity of illness, type of admission (medical, surgical), length of stay, prior hospitalization for same condition, QDTS content needed, received transition coordination services.

Figures in bold indicate statistically significant findings at p <.05.

QDTS, Quality of Discharge Teaching Scale; RHDS, Readiness for Hospital Discharge Scale; #, measured in hours-per-patient day.