Table I.

Total response rate among physicians with a specialty in general practice (GP), working in Sweden, aged less than 65 years, and working in primary health care (PHC) and frequency of sickness certification cases, respectively.¹

	Study population All physicians in Sweden with a board speciality in general practice (GP) N					Frequency of sickness-certification cases among the responding GPs working in PHC3
		Responders		<65 years of age, and working in a PHC2		At least 6 times per week		1–5 times per week		A few times per month or year		Never or almost never
	n	%	n	% of resp.	n	%	n	%	n	%	n	%
All	6900	41332	59.9	27012	65.4	1142	42.7	1374	51.4	121	4.5	38	1.4
Sex
Women	2913	1820	62.5	1232	67.7	476	39.0	659	54.0	65	5.3	21	1.7
Men	3987	2313	58.0	1469	63.5	666	45.8	715	49.2	56	3.9	17	1.2
Age
32–54 year	3028	1664	55.0	1281	77.0	581	45.6	637	50.0	45	3.5	10	0.8
55–64 year	3365	2134	63.4	1420	66.5	561	40.0	737	52.6	76	5.4	28	2.0
65–92 year	507	3352	66.1

Notes: ¹The study group consisted of 2516 GPs who had such consultations at least once a week (figures given in bold).

²The difference between 4133 responding GPs and 2701 is due to the fact that 335 were above the age of 64 and that 1097 mainly worked in other typea of setting, e.g. occupational health service.

³Missing 26 (1.0%)