Table 4: Negative binomial regression predicting MS patients seen per week among Non-MS subspecialists/general neurologists.

Incidence rate ratio95% confidence interval value

Subspecialty status (nonsubspecialist reference)
 Subspecialist 0.890.75–1.050.181
Practice arrangement (solo practice reference)
 Neurology group1.180.96–1.460.118
 Multispecialty group1.090.82–1.450.556
 University based group0.590.41–0.850.005
 Other0.850.65–1.130.261
 Unknown0.760.57–1.010.055
Age (44 years or less reference)
 45 to 53 years1.050.83–1.320.693
 54 to 59 years1.140.90–1.450.268
 60 years or more0.940.74–1.200.613
Sex (male reference)
 Female0.810.66–0.990.039
Insufficient reimbursement for time involved (no reference)
 Yes0.920.78–1.090.341
Lack of sufficient knowledge to feel comfortable caring for this patient population (no reference)
 Yes0.510.29–0.920.025
Lack of sufficient knowledge regarding newer disease-modifying drugs (no reference)
 Yes0.800.58–1.090.155
Seldom encounter MS patients (no reference)
 Yes0.420.28–0.620.000
Ability to improve patient outcomes and quality of life (no reference)
 Yes1.441.07–1.920.015
Dynamic area with evolving treatment options (no reference)
 Yes1.271.04–1.540.017
Care involving a multidisciplinary approach (no reference)
 Yes1.030.86–1.230.744
Research opportunities (no reference)
 Yes1.180.95–1.47 0.125
Enjoy interacting with MS patients (no reference)
 Yes1.411.18–1.670.000
Area in which you are practicing (within a major city reference)
 Suburban or moderate-sized city1.180.98–1.410.076
 Rural area or small city1.301.02–1.650.031

The “other” category includes neurologists who responded “staff-model HMO,” “government hospital or clinic,” or “other public or private hospital or clinic setting” to question “Indicate in which practice arrangement you spend the majority of your clinical time.”