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Sickness-certification practice in different clinical settings; a survey of all physicians in a country
© Lindholm et al; licensee BioMed Central Ltd. 2010
Received: 25 August 2010
Accepted: 6 December 2010
Published: 6 December 2010
How physicians handle sickness-certification is essential in the sickness-absence process. Few studies have focused this task of physicians' daily work. Most previous studies have only included general practitioners. However, a previous study indicated that this is a common task also among other physicians. The aim of this study was to gain detailed knowledge about physicians' work with sickness-certification and of the problems they experience in this work.
A comprehensive questionnaire regarding sickness-certification practice was sent home to all physicians living and working in Sweden (N = 36,898; response rate: 61%). This study included physicians aged <65 years who had sickness-certification consultations at least a few times a year (n = 14,210). Descriptive statistics were calculated and odds ratios (OR) with 95 % confidence intervals (CI) were estimated for having different types of related problems, stratified on clinical settings, using physicians working in internal medicine as reference group.
Sickness-certification consultations were frequent; 67% of all physicians had such, and of those, 83% had that at least once a week. The proportion who had such consultations >5 times a week varied between clinical settings; from 3% in dermatology to 79% in orthopaedics; and was 43% in primary health care. The OR for finding sickness-certification tasks problematic was highest among the physicians working in primary health care (OR 3.3; CI 2.9-3.7) and rheumatology clinics (OR 2.6; CI 1.9-3.5). About 60% found it problematic to assess patients' work capacity and to provide a prognosis regarding the duration of work incapacity.
So far, most interventions regarding physicians' sickness-certification practices have been targeted towards primary health care and general practitioners. Our results indicate that the ORs for finding these tasks problematic were highest in primary health care. Nevertheless, physicians in some other clinical settings more often have such consultations and many of them also find these tasks problematic, e.g. in rheumatology, neurology, psychiatry, and orthopaedic clinics. Thus, the results indicate that much can be gained through focusing on physicians in other types of clinics as well, when planning interventions to improve sickness-certification practice.
Physicians have an essential role in the sickness absence process; however, there is very little scientific knowledge about this. In the last years, some more studies have been published but the number still is scarce [1–6]. Possible negative consequences of being sickness absent have recently been highlighted [7, 8] as well as the importance of sickness certificates being issued with the same caution as other recommendations made by physicians to their patients, in order to avoid negative consequences [1, 9, 10].
In most countries there are two requisites for being entitled to sickness benefits; one must have a disease or an injury and this disease or injury must have affected one's work capacity . In Sweden, as in most countries, all physicians may issue sickness certificates. However, writing the certificate is only one of the tasks that may be involved in a consultation where sickness-certification is considered. Those different tasks can be summarised as :
Determine if the patient has a disease or an injury.
To ascertain whether the disease or injury impairs the patient's functional ability to the extent that the work capacity is also impaired in relation to her or his work demands.
Consider, together with the patient, the possible advantages and disadvantages of being sickness absent.
Determine the duration and grade (full or part time) of sick leave and the medical investigations, treatments, or other measures needed during the sick-leave period.
Determine possible needs for contact with other specialists, the social insurance office, occupational health services, the employer, or other stakeholders and if so, to establish adequate communication.
Issue a certificate that provides sufficient information for the employer or social insurance officer to decide whether the patient is entitled to sickness benefits and in need of further return-to-work measures.
Document assessments and actions taken.
In a systematic literature review of studies of sickness-certification practice, scientific evidence could be established for only two issues; that the sickness certificates had low quality and that the physicians found sickness-certification problematic [1, 11]. The Swedish Council on Technology Assessment in Health Care (SBU) concluded that the number of studies was low and that sample sizes were small and often very biased. Moreover, SBU stated that larger studies were warranted to be able to generalize results and to get more detailed information, as basis for interventions.
In this research area it is especially crucial to also use the physicians' perspective on the sickness-certification task and related problems, in order to be able to tailor interventions along the line of their experiences and wishes. Moreover, most studies in this area have included only general practitioners (GPs) [2, 3, 11–27]. Some studies have compared the frequency and the severity of problems among GPs with that of other physicians [1, 5, 6, 28–30]. Nevertheless, the knowledge about sickness-certification practice among other physicians than GPs is still scarce.
Therefore, we in a previous questionnaire study included physicians also from other clinical settings . One finding was that consultations involving sickness-certification were equally, or even more, frequent among other specialists and clinics than in primary health care (PHC)/among GPs [6, 29]. This was unexpected and we have, consequently, here pursued our research about this in a larger study, including all the physicians in Sweden.
The aim was to gain detailed knowledge about physicians' work with sickness-certification regarding frequency of different types of situations and severity of related problems, in general as well as in specific clinical settings.
A cross-sectional questionnaire study was conducted. The questionnaire was administered to all physicians in Sweden, a country with 9.3 million inhabitants. The study population was the 36,898 physicians of all ages who lived and mainly worked in Sweden in October 2008. They were identified using a register of all physicians, held by the company that in Sweden has the most complete such register; Cegedim AB.
A comprehensive questionnaire of 163 questions about various aspects of sickness-certification practice and related work issues was developed, based on a previous questionnaire, research, and contacts with many different clinicians and researchers in the area [29, 31]. The questionnaire was tested in a pilot study with a random sample of 100 physicians (62.0% response rate).
Study population characteristics, response rate, number and proportion in clinical settings having sickness-certification consultations.
consultations at least a
few times a year (n, %)
Primary health care (PHC)
Child and adolescent care
Occupational health service
Ear, nose, and throat
Do not work in a clinic
In this study we included the 14,210 participants who were below the age of 65 and had consultations concerning sickness-certification at least some times in a year.
Information about age, sex, and being a board certified specialist was provided by the National Board of Health and Welfare via Cegedim AB. All other data were provided by the questionnaire. Information about type of clinical setting the participant mainly worked in is presented for 18 specified clinics, "other clinics", and "administration/research/education" (in tables and figures called "Administration"), respectively.
Frequency of consultations, frequency of related problems, and severity of experienced problems, respectively, were measured by answers to three questionnaire items:
- Frequency of consultations concerning sickness-certification was measured by the alternative answers; "more than 20 times a week", "6-20 times a week", "1-5 times a week", "about once a month", "a few times a year", and "never or almost never". The two response alternatives "about once a month" and "a few times a year" were combined to "less than once a week".
- The response alternatives regarding frequency of problems in handling sickness-certification consultations were; "more than 10 times a week", "6-10 times a week", "1-5 times a week", "about once a month", "a few times a year", and "never or almost never". The alternatives "about once a month" and "a few times a year" were combined to "less than once a week".
- Regarding severity of experienced problems, the response alternatives were "very", "fairly", "somewhat", and "not at all" to a generic question "How problematic do you generally find it to handle sickness-certification of patients?" and to 16 specified problems.
Results from descriptive statistics of frequencies of consultations and problems regarding those, the association between them, as well as the severity of problematic tasks were stratified by type of clinic. Analysis made of the variations between age groups and between men and women turned out to be small and the results appear, therefore, for all together.
The odds ratios (OR) of having very or fairly problematic situations were estimated with 95% confidence interval (CI), adjusted for specialist/not specialist. The reference group was physicians working in internal medicine clinics, chosen because of its large size and moderate level of problems. ORs were calculated for items that at least half of the responders found very or fairly problematic. The analyses were performed using the SPSS 17.0 program.
The study was approved by the Regional Ethical Review Board of Stockholm.
Of all the responding physicians below the age of 65, 67.4% had consultations considering sickness-certification at least a few times a year. That rate was higher for non-specialists than for specialists; 73.6% and 65.1%, respectively (Table 1). In a number of clinical settings, nearly all physicians had such consultations at least a few times a year; PHC (97.4%), infectious diseases (97.0%), occupational health service (96.4%), oncology (96.0%), and rheumatology (99.0%).
Physicians' characteristics, frequencies of sickness-certification consultations and related problems (%), distributed on clinical settings.
Characteristics of the physiciansa
in different clinics
Rate (%) of physiciansa who had
sickness-certification consultations at
different frequencies during a week
Rate (%) of physiciansa who
experienced problems related to
sickness-certification at different
frequencies during a week
< once a
< once a
Primary health care
Ear, nose, and throat
Child and adolescent
Do not work in a clinic
All of the physicians a
Missing (n = 56)
In most clinics, the proportion of physicians having many such consultations was positively associated to the proportion finding them problematic. However, the physicians in oncology clinics and in PHC diverged. A high rate of the physicians in oncology clinics had sickness-certification consultations but a relatively low rate found them problematic, while the contrary was found for PHC.
The physician's assessment of how problematic they experienced different sickness-certification tasks to be (%).
How problematic do you generally find it to...
...handle sickness-certification of patients?
...assess whether a patient's functional capacity is reduced?
...assess whether the reduced functional capacity is due to disease or injury?
...assess the degree to which the reduced functional capacity limits a patient's work capacity?
...provide a long-term prognosis about the future work capacity of sick-listed patients?
...assess the optimum duration and degree of sickness absence?
...suggest a plan of action and/or measures to be taken during the sick leave?
...decide whether to certify a prolongation of a sick- leave period initially certified by another physician?
...manage your dual role of being a doctor for your patients and a medical expert for the Social Insurance Office and other authorities?
...discuss possible changes in lifestyle and life circumstances with a patient who is being issued a sickness certificate?
...discuss and know how to deal with other psychosocial problems (e.g. economic difficulties or physical or substance abuse) when managing a patient on sick leave?
...manage situations in which you and a patient have different opinions about the need for sickness absence?
...discuss with the patient the advantages and disadvantages of being on sick leave?
...issue sickness certificates for the social insurance officers?
...provide the SIO with other types of certificates?
...know what aspects of the sickness-certification process that is to be documented in the patient's chart?
...handle situations in which you and other members of the healthcare team have different opinions about sickness-certification of a patient? (Not applicable for 44.7%)
Physicians (%) who experienced sickness-certification as very or fairly problematic stratified on clinics.
How problematic do you generally find it to...
...handle sickness- certification of patients?
...to assess the degree which the reduced functional capacity limits a patient's work capacity?
...provide a long-term prognosis about the future work capacity of a sick-listed patient?
...assess the optimum duration and degree of sickness absence?
...decide whether certify a prolongation of a sick-leave period initially certified by another physician?
ORb (95% CI)
ORb (95% CI)
ORb (95% CI)
ORb (95% CI)
ORb (95% CI)
Primary health care
Child and adolescent
Ear, nose, and throat
This is, so far, the internationally largest questionnaire study of physicians' sickness-certification tasks and problems, regarding type of situations they encountered and problems they experienced, including all physicians working in Sweden. Sickness-certification consultations were far more frequent than anticipated - more than two thirds of the physicians had such consultations, and of those over 80% had that at least once a week. Moreover, the rate of having such consultations was much higher in many other clinical settings than in PHC, e.g. in orthopaedics and in oncology. This has not been studied in other countries. Obviously, the previous focus on GPs regarding these tasks needs to be reconsidered. Nevertheless, a much higher rate of the physicians in PHC experienced these tasks as problematic. The majority of all physicians rated the task to assess magnitude of work incapacity and the prognosis of such incapacity as problematic. More detailed knowledge, regarding the broad tasks involved in sickness-certification consultations, has been called for [32, 33]; some of that is provided here.
Strengths of the study are the very large sample size, that all physicians (N = 36,898) working and living in Sweden were included, that all clinical settings were included, and the detailed questions about these tasks. The study group is large enough to admit sub-group analysis, e.g. regarding different types of clinics. Another strength, from an intervention perspective, is that these results were based on the physicians' own experiences of tasks and problems. They can, therefore, be of good use when e.g. targeting different types of competence development . A limitation is the drop out of 39%. Nevertheless, the response rate can be considered high for this type of study and the study design admits analyses of bias in the dropout. Differences in dropout rates between physicians being board certified specialist and non-specialist i.e. not yet fully trained or registered specialist might have affected our results. Non-specialists were, as expected, younger. During training, they often change residence, also geographically, which might be one reason for the higher drop out. The non-specialists had a higher dropout rate and also reported more problems regarding sickness certification than the specialists, which might have lowered the crude OR for problems reported from clinics with higher proportion of non-specialists. That is, in some cases the ORs might be underestimated, even when adjusted for rate of registered specialists.
To sickness certify a patient is a common task in health care in Sweden as in many other countries. However, this recommendation can so far not be based on scientific evidence . In a previous, smaller study a slight association was found between physicians having at least six sickness-certification consultations a week and rates of having problems with this at least once a week . The results of the present, much larger study, goes in the same direction and we found similar associations in the majority of clinics, however, not for physicians in oncology and PHC. The proportion of physicians experiencing problems regarding sickness-certification in general, as for specific items, varied with type of clinic. The physicians in PHC had the highest ORs for experiencing problems, although they did not have the highest frequency of sickness-certification consultations.
Actually, also some physicians in geriatrics and child care had sickness-certification cases. This can be explained in at least three ways; one is that the participants were asked to indicate the type of clinic where they mainly worked, but some might also be clinically active in other types of clinics. The second is that some of their patients are adolescents, above the age of 16, and thus can be sickness absent and in geriatrics also some patients work in spite of old age. The third is that they might sickness certify parents of children or relatives of geriatric patients. So far, none have studied this.
We were surprised by the very high rates of consultations and also by the large variety in rates of physicians experiencing problems with these tasks. In Sweden, as in most welfare countries, specialists generally are to refer patients to PHC when treatment is finished or stabilised. It is an understanding that sickness-certification is to be monitored from PHC if a patient is referred to other clinics by the general practitioner in PHC. Nevertheless, very high rates of physicians in different clinics had such tasks very often. More studies are needed to verify these results also in other countries. However, other studies indicate that GPs generate about half of all sickness-certification, which is well in line with our results [1, 34]. An obvious issue here is whether the results can be generalized also to other countries. Sickness-certification practices have only been studied in very limited populations and mainly for GPs in other countries - thus, the situation might be similar there, however, that remains to be seen. Regarding other aspects of sickness-certification practice, results from different countries and from different time periods have been unexpectedly similar .
The most problematic part of sickness-certification seemed to be to assess the magnitude of the patient's work capacity. This result goes in line with some previous studies [19, 35, 36]. A variety of instruments for assessment of work capacity are used in different countries, however, scientific knowledge on the validity of them, their effects, and on possible implications for the work of physicians is warranted . Overall, the highest OR for problems with work-capacity assessments was found among physicians in PHC and in psychiatry, rheumatology, and neurology which had a still higher OR for problems providing a long-term prognosis of work capacity. We have not found any other studies about this.
The majority of physicians had sickness-certification consultations every week and problems experienced regarding this varied substantially in frequency as well as severity between clinical settings. The physicians at a vast majority of the clinics regarded sickness-certification consultations as problematic and far more so among physicians in PHC in spite of that they did not have as many such consultations. So far, most interventions concerning sickness-certification have been targeted towards physicians in PHC/GPs. Other physician groups with high frequencies of consultations and/or problems were found in oncology, orthopaedic, psychiatric, pain management, and rheumatologic clinics. The results indicate the importance to take account of the variety of problems in physicians in different clinical settings experience, when planning interventions aimed at improving their work with sickness-certification of patients.
So far, most interventions regarding physicians' sickness-certification practices have been targeted towards PHC and GPs. Our results indicate that those physicians also to a great extent experience sickness-certification consultations as problematic. Nevertheless, also other physicians have high risks for experiencing them as problematic, e.g. in rheumatology, neurology, psychiatry, and orthopaedic clinics. Moreover, in several clinical settings the physicians had such consultations more often than the GPs. Thus, the results indicate that much can be gained through focusing on physicians also in other types of clinics when planning interventions to improve physicians' sickness-certification practice.
The project, including development of the questionnaire, data collection and management, was financially supported by the Swedish Research Council of Working life and Social Sciences, Stockholm County Council, Ministry of Health and Social Affairs, and the National Social Insurance Agency.
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