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. 2018 Oct 1;54(3):636–649. doi: 10.1111/1475-6773.13064

Table 4.

Determinants of physician‐industry transfers 2014‐2016

Food/Beverage Education Travel/Lodging Consulting Other services
(1) (2) (3) (4) (5) (6) (7) (8) (9) (10)
Prob. ln ($) Prob. ln ($) Prob. ln ($) Prob. ln ($) Prob. ln ($)
Coeff. Coeff. Coeff. Coeff. Coeff. Coeff. Coeff. Coeff. Coeff. Coeff.
(SE) (SE) (SE) (SE) (SE) (SE) (SE) (SE) (SE) (SE)
Male 0.031*** 0.162*** 0.027*** 0.067*** 0.022*** 0.272*** 0.019*** 0.343*** 0.018*** 0.491***
(0.001) (0.006) (0.001) (0.007) (0.001) (0.030) (0.000) (0.029) (0.000) (0.041)
ln(Medicare RVUs+1) 0.031*** 0.111*** 0.020*** 0.009*** 0.003*** −0.017** 0.003*** −0.031*** 0.004*** 0.026***
(0.000) (0.001) (0.000) (0.002) (0.000) (0.007) (0.000) (0.007) (0.000) (0.008)
Office‐based 0.118*** 0.475*** 0.096*** 0.026*** 0.006*** 0.018 0.009*** −0.218*** 0.011*** 0.089***
(0.001) (0.006) (0.001) (0.008) (0.001) (0.025) (0.001) (0.027) (0.001) (0.032)
Year 2015 −0.023*** −0.030*** −0.045*** −0.255*** −0.001*** 0.032** −0.009*** 0.433*** 0.003*** −0.193***
(0.001) (0.003) (0.001) (0.007) (0.000) (0.016) (0.000) (0.018) (0.000) (0.017)
Year 2016 −0.070*** −0.186*** −0.098*** −0.627*** −0.009*** 0.061*** −0.024*** 0.683*** −0.001*** −0.288***
(0.001) (0.003) (0.001) (0.007) (0.000) (0.017) (0.000) (0.021) (0.000) (0.019)
Practice size
2 to 3 members 0.064*** 0.181*** 0.023*** 0.026** 0.009*** 0.208*** 0.009*** 0.277*** 0.011*** 0.028
(0.003) (0.010) (0.002) (0.011) (0.001) (0.049) (0.001) (0.049) (0.001) (0.055)
4 to 10 members 0.062*** 0.168*** 0.008*** −0.003 0.009*** 0.195*** 0.007*** 0.332*** 0.010*** 0.02
(0.002) (0.008) (0.002) (0.010) (0.001) (0.044) (0.001) (0.044) (0.001) (0.050)
11 to 20 members 0.022*** 0.008 −0.021*** −0.035*** 0.008*** 0.198*** 0.006*** 0.382*** 0.008*** 0.103*
(0.003) (0.010) (0.002) (0.013) (0.001) (0.052) (0.001) (0.054) (0.001) (0.060)
21 to 50 members −0.004 −0.020** −0.028*** −0.052*** 0.005*** 0.292*** 0.004*** 0.397*** 0.004*** 0.250***
(0.002) (0.010) (0.002) (0.012) (0.001) (0.050) (0.001) (0.050) (0.001) (0.059)
51 to 100 members −0.013*** 0.008 −0.024*** −0.036*** 0.005*** 0.199*** 0.005*** 0.427*** 0.004*** 0.123**
(0.003) (0.011) (0.002) (0.013) (0.001) (0.055) (0.001) (0.055) (0.001) (0.063)
100+ members −0.108*** −0.157*** −0.056*** −0.055*** 0.008*** 0.350*** 0.007*** 0.649*** 0.000 0.275***
(0.002) (0.008) (0.001) (0.010) (0.001) (0.040) (0.001) (0.039) (0.001) (0.047)
Years in practice
11‐19 yr 0.022*** 0.050*** 0.020*** 0.014 0.012*** 0.290*** 0.013*** 0.210*** 0.009*** 0.569***
(0.002) (0.007) (0.001) (0.012) (0.001) (0.041) (0.001) (0.039) (0.001) (0.060)
20‐29 yr 0.030*** 0.128*** 0.040*** 0.01 0.018*** 0.398*** 0.018*** 0.298*** 0.012*** 0.581***
(0.002) (0.008) (0.001) (0.012) (0.001) (0.042) (0.001) (0.040) (0.001) (0.062)
30+ yr 0.004* 0.053*** 0.029*** −0.041*** 0.007*** 0.366*** 0.011*** 0.280*** 0.001* 0.427***
(0.002) (0.008) (0.001) (0.012) (0.001) (0.043) (0.001) (0.041) (0.001) (0.062)
Constant 0.269*** 4.258*** 0.012*** 3.248*** −0.038*** 5.607*** −0.019*** 4.319*** −0.049*** 6.529***
(0.004) (0.014) (0.002) (0.021) (0.001) (0.096) (0.001) (0.078) (0.001) (0.123)
R‐Squared 0.214 0.217 0.124 0.079 0.057 0.073 0.053 0.31 0.064 0.238
N 1 227 123 674 125 1 227 123 195 421 1 227 123 44 493 1 227 123 44 400 1 227 123 39 763

Notes: Estimated using Ordinary Least Squares Multiple Regression with physician clustering using Stata 15. Each model was estimated with county fixed effects and a full set of specialty fixed effects (not reported).

***P < 0.01, **P < 0.05, *P < 0.1.