Table 1.

Participant characteristics (n = 187)

Participant group
G-P network group members	57	30.5 %
Workshop attendees	130	69.5 %
Sexa
Male	143	78.1 %
Female	40	21.9 %
Median age (range) (years) a	53.0 (32-82)
Specialtya,b
Internal medicine	124	68.1 %
Surgery	26	14.3 %
Both internal medicine and surgery	6	3.3 %
Other	26	14.3 %

^a Several participants did not provide responses.

^b The internal medicine group included general internal medicine, cardiovascular internal medicine, gastroenterological medicine, respiratory medicine, and neurology. The surgery group included general surgery, orthopedic surgery, gastroenterological surgery, and neurosurgery. Other specialties included pediatrics, obstetrics and gynecology, radiology, anesthesiology, otorhinolaryngology, dermatology, urology, proctology, dialysis, industrial physicians, and administrative posts in local governments.