Table 1. Background data on the respondents compared with the total Norwegian doctor work-force in 2006.

Category	Subcategory	Respondents (N = 966) Percent with 95% CI	All active doctors in 2006 percent (n)
Gender (%)	Females (311)	32.2 (29.3–35.3)	33.5 (4714)
	Males (652)	67.5 (64.4–70.4)	66.5 (9364)
	Data missing (3)
Mean age (years) in 2006	All (953)	48.8 (48.2–49.4)	49.2(14078)
	Females (305)	44.9 (43.9–45.9)	45.6 (4714)
	Males (648)	50.6 (49.9–51.3)	51.0 (9364)
	Data missing (1)
Specialty in 2006 (%)1)	General practice (248)2)	25.7 (23.0–28.6)	25.5 (3583)
	Laboratory medicine (76)3)	7.9 (6.3–9.8)	7.9 (1106)
	Internal medicine (256)4)	26.5 (23.8–29.4)	24.5 (3447)
	Surgical disciplines (97)5)	10.0 (8.3–12.2)	12.1 (1704)
	Anaesthesiology (40)	4.1 (3.0–5.7)	5.0 (701)
	Gynaecology (37)	3.8 (2.8–5.3)	4.1 (583)
	Psychiatry (121)6)	12.5 (10.5–14.8)	10.2 (1442)
	Public health (44)7)	4.6 (3.4–6.1)	6.7 (943)
	Data missing (47)	4.9 ( 3.6–6.5)	4.0 (569)

Bold characters indicate significant differences (95% confidence intervals do not include the percentages for all doctors).

¹⁾lncludes specialists in training.

²⁾includes some general practitioners who are not GP-specialists and not in training.

³⁾includes nuclear medicine, immunology, physiology, chemistry, neurophysiology, genetics, medical microbiology, radiology, pathology, neuropathology, pharmacology.

⁴⁾includes paediatrics, rehabilitation medicine, dermato- venerology, general internal medicine, haematology, endocrinology, gastroenterology, geriatrics, cardiology, infectious diseases, pulmonology, nephrology, neurology, rheumatology, oncology, ophthalmology, communicable diseases.

⁵⁾includes general surgery, paediatric surgery, gastrointestinal surgery, orthopaedic surgery, thorax surgery, urology, maxillofacial surgery, neurosurgery, oto-rhino-laryngology, plastic surgery.

⁶⁾includes child- and adolescence psychiatry.

⁷⁾includes occupational health.