Norwegian Labour Inspection Authority Research Articles

Accuracy of fatal occupational injury registration in a high-income country: A comparison of two-source capture-recapture estimates with the number of cases identified in four register systems in Norway, 2000-2003.

Globally, work-related deaths (injuries and diseases) are a major social and public health problem. Register data on fatal occupational injuries in high-income countries may be considered to have high quality, especially when reporting is mandatory and regulated by law. We aimed to assess the accuracy of work-related injury death statistics in Norway, with reference to the Labour Inspection Authority and three other on-going registration systems (the cause-specific mortality register, the register for governmental compensations, and the register for insurance companies). In this register-based study, we used the capture-recapture technique to adjust for undercounting. We investigated whether the capture-recapture method using two or three sources gave a valid estimate of fatal occupational injuries as compared with the number of cases identified in four registers administrated by the Norwegian Labour Inspection Authority, Statistics Norway, the Labour and Welfare Administration, and Finance Norway. The inclusion criteria were fatal unintentional injuries among residents of Norway between 2000 and 2003 that occurred while working for income in private and public land-based industries. We obtained ethical and legal approvals. In a period of four years (2000-2003), the Labour Inspection Authority registered 171 occupational injury deaths among residents employed in land-based industries. Two combinations of data sources gave capture-recapture estimates of 246 [95% CI 216; 279] and 265 [95% CI 234; 299] deaths. In total, 246 cases were identified in the four registration systems, which was 44% higher than the number of deaths registered by the Labour Inspection Authority. The Labour Inspection Authority had the most complete register out of the four registration systems. The capture-recapture method used on two overlapping data sources gave highly valid estimates of the total deaths. We demonstrated the existence of significant weaknesses in the registration systems in a country considered to have high-quality register data.

The Impact of Business Leaders' Formal Health and Safety Training on the Establishment of Robust Occupational Safety and Health Management Systems: Three Studies Based on Data from Labour Inspections.

The impact of occupational safety and health (OSH) training is a neglected topic in safety research. In Norway, such training is mandatory for all business leaders. Hence, the Norwegian working life forms a particularly interesting case for studying the impact of OSH training. On the basis of data from labour inspections performed by the Norwegian Labour Inspection Authority (NLIA), this article examines the impact of business leaders’ mandatory OSH training on the establishment of robust OSH systems. Three separate studies have been conducted. In study 1, cross-sectional data from inspections of 29,224 companies are analysed. In study 2 and 3, longitudinal data from inspections of 1119 and 189 companies, respectively, are analysed. The analyses reveal that mandatory OSH training of business leaders is positively associated with compliance with legal requirements related to the minimum content of OSH systems. This means that mandatory OSH training is important for the establishment of robust occupational safety and health management systems.

Effectiveness of the Labour Inspection Authority’s regulatory tools for work environment and employee health: study protocol for a cluster-randomised controlled trial among Norwegian home-care workers

IntroductionThere is a need to evaluate whether, and to what degree, labour inspections or other regulatory tools have the desired effects on psychosocial, organisational and mechanical work environment, and employee...

Accident types and barrier failures in the construction industry

The paper identifies frequent accident types in the construction industry, characterises the accident sequence, and identifies barrier failures for the most frequent accident types. 176 accidents in the Norwegian construction industry investigated by the Norwegian Labour Inspection Authority in 2015 are analysed. The most frequent accident types include: fall from roof, floor or platform; contact with falling objects; fall from scaffold; and contact with moving parts of a machine. A comparison of the study sample to other injury samples, showed that the distribution of accident types varied regarding severity and different construction types. This can be explained by differences in work type, hazard, and energy type and energy amount. An analysis of barrier failures showed that many accidents are explained by the lack of physical barrier elements. The results indicate that there is significant potential for accident prevention in the construction industry by systematic barrier management.

Female professional divers. Similarities and differences between male and female professional divers.

The aim of the present study was to explore the potential differences between female and male professional divers with regards to demographics, diving certificates, areas of diving, diving activity and health effects. The Norwegian Labour Inspection Authority's Diving certificate register contains data on all professional inshore divers who have held a certificate at any time since 1980. Forty nine per cent of these divers responded to the "Norwegian diver 2011" questionnaire. Of these divers 64 female and 1327 male divers completed the questionnaire about their professional diving career, certificate, year of onset and the year they stopped diving professionally if they were not still active in the diving industry. The level of general education was higher among female divers. More males than females were fully certified in diving. The mean age was lower among female than male fully certified divers. Fully certified female divers reported a lower total number of dives, shallower dives and diving for a shorter period of time than the male divers. They also had a lower percentage of work within the quay/construction sector and more often worked as teachers/instructors. A lower percentage of fully certified females than males had experienced decompression sickness (16.7% vs. 26.9%). Life-threatening events and psychologically challenging events were less common among females, as were adverse health effects. No such gender differences were seen for divers with a restricted certificate. The fully certified, female professional divers in our study had a very short diving career, reported fewer and shallower dives, and chose less physically demanding jobs than their male counterparts. They also had a higher level of education, reported less health problems and a better quality of life. The health effects seem to be related to the type of work rather than to gender.

Diving exposure and health effects in divers working in different areas of professional diving

The aim of the present study was to compare diving exposure and health effects in different areas of professional diving. The Norwegian Labour Inspection Authority's Diving Register contains data on all professional inshore divers who have held a diving certificate at any time since 1980. Of these divers, the "Norwegian diver 2011" questionnaire was completed by 2848 (48.7%). A total of 1167 male divers reported that they often worked in one area of diving only (rescue diving, diving instruction, fish farming, quay/construction work and offshore/oil related). In the analysis of these divers, rescue divers were used as referents as they reported the lowest number of dives. Age distribution, the proportion of retired divers and the mean number of dives completed varied between the different areas of professional diving. Compared to rescue divers, divers in fish farming, quay/ /construction work and offshore/oil related work more often experienced physically demanding diving. Divers in fish farming more often had no day off after 3 days of physically demanding work compared to rescue divers. All groups except offshore divers reported making further dives after one physically demanding dive on the same day. All groups reported more frequent decompression sickness than did the referents and divers in quay/construction and offshore/oil related diving reported more frequent episodes of unconsciousness during diving than did the referents. Divers in fish farming, in quay/construction work and oil/ /offshore related diving obtained a higher symptom score than the referents and the two latter groups also reported more frequent adverse health effects due to diving than the referents. Health related physical and mental component summary scores were lower in all other groups than in referents. Compared to the rescue divers, divers in quay/construction work and offshore/oil related divers reported more adverse health effects and obtained a higher symptom score.

Occupational lung cancer in Sør-Trøndelag county

Lung cancer can be caused by occupational exposure. This is not always recognised or reported, and not all patients receive the benefits to which they are entitled. We collected occupational case histories for patients from Sør-Trøndelag county with a first-time diagnosis of lung cancer. The number of reported cases of occupationally related lung cancer was collected from the Norwegian Labour Inspection Authority, and information on approval of occupational illness was collected from the Norwegian Labour and Welfare Authority (NAV). 105 patients with lung cancer took part in the study, 73 men and 32 women. Among the men, altogether 12 cases (16%) were assessed as likely and 16 (22%) as possibly occupationally related. Among the women, none of the cases were assessed as occupationally related. The reporting frequency from the health regions to the Norwegian Labour Inspection Authority varied from 1.7% to 5.1%. Altogether 9 out of 11 likely cases and 5 out of 12 possible cases of occupationally related lung cancer were granted injury compensation by the Norwegian Labour and Welfare Authority. In this study, we found that approximately 20% of the cases of lung cancer in men are occupationally related, and that the underreporting of occupationally related lung cancer appears to be considerable. The obligation of doctors to report to the Norwegian Labour Inspection Authority should be made better known. Most likely, more patients would have had their lung cancer verified as an occupational illness and could have received injury compensation if they had been aware of the opportunity to apply for this.

Cancer risk among professional inshore divers in Norway

Professional divers are exposed to physiological effects of increased ambient pressure and may be exposed to hazards like carcinogens in polluted breathing gas and water. Consequences in terms of adverse health effects and mortality have been debated for many years. The aim of this study was to compare the risk of cancer in Norwegian professional divers to that of the general population. All professional divers born 1950-1990 and registered by compulsory notification in The Norwegian Labour Inspection Authority's registry of divers were included and grouped according to the type of diving certificate. By August 2010, 5,526 male divers were identified. The rest of the male population born in the same period (1,591,243) was used as referents. The Cancer Registry of Norway, based on compulsory notification of all diagnosed malignancies, was linked to the Diver Registry. A higher risk of cancer, OR 1.54 (CI 1.21-1.96), was observed among fully certified divers compared to the referents. No excess risk was observed for professional divers with limited certificate. Norwegian fully certified divers had higher risk of cancer compared to the Norwegian male population. Based on small numbers, the higher risks among divers within subgroups of cancer sites should be interpreted with care.

A comparison of two physical ability tests for firefighters

Smoke diving is physically demanding, and firefighters must therefore meet certain minimum physical requirements. The aim of this study was to compare the physiological demands of two fire fitness tests: a test of 8-min treadmill walking approved by the Norwegian Labour Inspection Authority (NLIA) (a laboratory test) and a Canadian test consisting of 10 firefighting specific tasks carried out in sequence (an applied field test). If the Canadian field test is as physically demanding as the NLIA-approved laboratory test, it may be suitable for testing Norwegian firefighters. Twenty-two male professional firefighters were tested on separate days. In both tests, the subjects wore a complete firefighting outfit including a breathing apparatus. The test durations were 8 min (NLIA test) versus approximately 6 min (Canadian test). Neither the peak O2 uptake (VO2) of approximately 45 ml kg − 1 min − 1 nor the blood lactate concentration (BLC) at test termination ( ≈ 9 mmol L − 1) differed between the two tests. Rating of perceived exertion (RPECR-10) was lower for the Canadian test than for the Norwegian test (5.2 ± 1.5 vs. 7.0 ± 2.0, respectively), and the exercise time at a high VO2 was also shorter. In conclusion, the Canadian test appeared to be almost as physically demanding as the NLIA-approved test, having equal peak VO2 and BLC, but shorter time at a high VO2 and shorter duration. It might thus be a suitable alternative to the NLIA test with some modifications. The advantage of the Canadian field test is the inclusion of specific firefighting-like tasks that are not part of the NLIA test.

Performance on a Work-Simulating Firefighter Test Versus Approved Laboratory Tests for Firefighters and Applicants

Aim. Firefighters must meet minimum physical demands. The Norwegian Labour Inspection Authority (NLIA) has approved a standardised treadmill walking test and 3 simple strength tests for smoke divers. The results of the Trondheim test were compared with those of the NLIA tests taking into account possible effects of age, experience level and gender. Methods. Four groups of participants took part in the tests: 19 young experienced firefighters, 24 senior male firefighters and inexperienced applicants, 12 male and 8 female. Results. Oxygen uptake (VO2) at exhaustion rose linearly by the duration of the treadmill test. Time spent on the Trondheim test was closely related to performance time and peak VO2 on the treadmill test. Senior experienced firefighters did not perform better than equally fit young applicants. However, female applicants performed poorer on the Trondheim test than on the treadmill test. Performance on the Trondheim test was not closely related to muscle strength beyond a minimum. Conclusion. Firefighters completing the Trondheim test in under 19 min fit the requirements of the NLIA treadmill test. The Trondheim test can be used as an alternative to the NLIA tests for testing aerobic fitness but not for muscular strength. Women’s result of the Trondheim test were poorer than the results of the NLIA treadmill test, probably because of their lower body mass.

Estimating work-related amputations in the Norwegian manufacturing sector: a 10-year retrospective study based on two-source capture–recapture method

Work-related amputations are serious yet preventable injuries. Workers in the manufacturing sector in particular are vulnerable to amputation injuries compared to workers in other sectors. In this study, we used a two-source capture recapture method to estimate the true number of annual work-related amputations in the Norwegian manufacturing sector for a 10-year study period (1998-2007). The two-sources utilized in this study were the Norwegian Labor Inspection Authorities Registry of Work-Related Injuries (RWI) and the Association of Norwegian Private Insurance Companies registry for occupational injuries (ANPIC). We estimated an annual incidence rate that ranged from 21/100 000 to 62/100 000 workers during the study period. Our findings indicate an undercount of amputations reported to the Norwegian Labour Inspection Authority's registry ranging from 16% to 58% during the study period. Work-related amputations remain a challenge in the Norwegian manufacturing sector. This study underscores the need of robust epidemiological surveillance infrastructure and effective interventions to prevent amputations at work.

Underreporting of fatal occupational injuries in Norway, improved completeness by combining several sources

BackgroundThe Norwegian Labour Inspection Authority (NLIA) records fatal occupational injuries. Complete and correct recording is a prerequisite for efficient prevention.AimsTo assess the completeness of this register.MethodsFor 2000–2003 the NLIA recorded...

The transfer of knowledge and the problems of identity in a managed and online context

The purpose of this article is to look into the social aspect of learning, and in particular how the construction of identity influences the transfer of knowledge in a managed and online context. The relationship between the ‘old-timer’ and the ‘newcomer’ is given special consideration through a qualitative study of the Norwegian Labour Inspection Authority. The study shows that inspectors construct their identity and categorize others in a way that creates barriers to the transfer of knowledge, constructions that are influenced by managerial participation. This article contributes to our understanding of how social aspects influence the transfer of knowledge between old-timers and newcomers in a managed and online context.

The transfer of knowledge and the problems of identity in a managed and online context

The purpose of this article is to look into the social aspect of learning, and in particular how the construction of identity influences the transfer of knowledge in a managed and online context. The relationship between the ‘old-timer’ and the ‘newcomer’ is given special consideration through a qualitative study of the Norwegian Labour Inspection Authority. The study shows that inspectors construct their identity and categorize others in a way that creates barriers to the transfer of knowledge, constructions that are influenced by managerial participation. This article contributes to our understanding of how social aspects influence the transfer of knowledge between old-timers and newcomers in a managed and online context.

Fatal occupational injuries are underreported in Norway

ObjectivesThe Norwegian Labour Inspection Authority records fatal occupational injuries in all sectors (except offshore, aviation, shipping and fishing). For 2000–03 the Labour Inspection Authority recorded 171 fatal occupational injuries where...

Fatal occupational injuries underreported in Norway

Background2/3 of all fatal occupational injuries (OI) in Norway are recorded by the Norwegian Labour Inspection Authority (NLIA). The other 1/3 is recorded by authorities of oil production, shipping, fishing...

Arbeidsskadedødsfall blir underrapportert

The Norwegian Labour Inspection Authority records fatal occupational injuries in mainland bases activities, i.e. all sectors except offshore, aviation, shipping, hunting and fishing; the Registry's information on these injuries has been considered complete. The present study aimed at testing this assumption. In 2000 - 03, the Labour Inspection Authority recorded 183 fatal occupational injuries; 171 of the deceased were residents in Norway. Each of these deaths were compared with fatal occupational injuries in the Norwegian Cause of Death Registry. A capture-recapture model was used to estimate the real number of fatal occupational injuries. In 2000 - 03, 214 fatal occupational injuries were recorded among residents in Norway employed in all sectors (except offshore, aviation, shipping, hunting and fishing) in at least one of the two registries (98 cases were reported in both registries). The Norwegian Labour Inspection Authority mainly lacked information about (in comparison with the Death Registry) deaths in the military (1 of 9), in the health and social services (3 of 7), road traffic accidents (36 of 52) and deaths in Northern Norway/Spitsbergen (17 of 28). One third of all recorded cases (77 of 214) were caused by transport accidents. Risk by industry (deaths per 100 million work hours) was highest for primary industries (7.0) and for <<transport and communication>> (4.1). The real number of fatal injuries was estimated to 246, or 44 % more than the 171 deaths registered by the Labour Inspection Authority. Fatal occupational injuries are much more frequent than reported in the official registries. Underreporting, particularly of road traffic accidents/transport accidents, may lead to misinterpretation of risks and time trends and of need for preventive action.