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. Author manuscript; available in PMC: 2010 Jul 23.
Published in final edited form as: Policy Polit Nurs Pract. 2009 Jul 23;10(2):101–109. doi: 10.1177/1527154409339395

Table 2.

Robust Regression Estimates for the NPOP

Variables Coefficient p-value
Median income 0.001 .582
Average education 0.600 .000
Children per family 0.104 .662
Total nursing schools −0.004 .410
Ratio private to public facilities −1.685 .001

Note: NPOP = Nurse-to-population ratio.

Source: Authors’ calculations based on an iteratively reweighted least squares robust regression applied to State level values (see methods section for more details).