Table 1

 Characteristics of respondents, stratified by profession*

CharacteristicDoctorsPharmacistsAdvanced practitionersNurses
*Advanced practitioners include nurse practitioners and physician assistants.
Number of respondents138578
Number of employees2586115
Response rate (%)5210083.367.8
Employment type (% full time)010080.091.0
Sex (% female)9.15010086.2