Table 2. Characteristics of physicians and practices (physicians: n = 251; practices: n = 145).

Physicians by sex
Female	21.2%
Male	78.8%
Practice by number of physicians
1 physician	45.5%
2 physicians	42.1%
3 or more physicians	12.4%
Practice by region
Old German states	80.9%
New German states	19.1%
Practice by size of municipality (head of population)
<20 000	7.1%
20 000 to <100 000	36.9%
100 000 to <500 000	31.2%
≥ 500 000	24.8%