Work-related head injury and industry sectors in Finland: causes and circumstances.

OBJECTIVE: Despite the continuous development of occupational safety, the prevalence of work-related head injuries is excessive. To promote prevention, we conducted a study evaluating the risks and pathways that precede head injuries in different economic activity sectors. METHODS: In Finland, more than 90% of employees are covered by inclusive statutory workers' compensation. We obtained data on occupational head injuries in 2010-2017 from an insurance company database. The European Statistics on Accidents at Work (ESAW) variables represented the characteristics of the accidents and the injury. We analysed the risk factors, contributing events and injury mechanisms in 20 industry sectors, based on the Statistical Classification of Economic Activities in the European Community (NACE). RESULTS: In the 32,898 cases, the most commonly affected area was the eyes (49.6%). The highest incidence of head injuries was in construction (15.7 per 1000 insurance years). Construction, manufacturing, and human health and social work activities stood out due to their distinctive ESAW category counts. 'Working with hand-held tools' [risk ratio (RR) 2.23, 95% confidence interval (CI) 2.14-2.32] in construction and 'operating machines' (RR 3.32, 95% CI 3.01-3.66) and 'working with hand-held tools' (1.99, 1.91-2.07) in manufacturing predicted head injury. The risk related to parameters of violence and threats in health and social work activities was nearly ninefold the risk of other sectors. CONCLUSION: The risks and pathways preceding head injuries varied considerably. The highest head injury rates were in construction and manufacturing. Violence emerged as a major risk factor in human health and social work activities.

Oral inflammatory burden and preterm birth.

BACKGROUND: Earlier studies on the association between oral inflammation and preterm birth limited the inflammation source to periodontal disease. This might have caused an underestimation of the total inflammatory burden from the oral cavity. METHODS: We conducted a postpartum cross-sectional study of 328 Finnish women with singleton births, of whom 77 had preterm births and 251 had full-term births. Gingival bleeding on probing, probing depth, and the presence of dental calculus and mouth ulcers were recorded; the oral inflammatory burden index (OIBI) was constructed based on these clinical findings. A data-driven oral inflammation score (OIS) was also created by stochastically combining the same parameters assessed independently. We used the t, Mann-Whitney, and chi(2) tests for univariate analyses and multivariate logistic regression methods to examine the association between OIBI/OIS and preterm birth. The confounders adjusted for were age, smoking (past, present, and never), diabetes (type 1, type 2, and gestational), primiparity, antimicrobial treatment as a proxy for systemic infection, infertility treatment, and weight gain during pregnancy. RESULTS: OIBI was significantly associated with preterm birth after adjusting for confounding factors (odds ratio [OR], 1.85; 95% confidence interval [CI]: 1.10 to 3.10; P = 0.02). Without adjusting for weight gain, OIS was significantly associated with preterm birth (OR, 1.97; 95% CI: 1.09 to 3.57; P = 0.03); however, this association became non-significant after adding weight gain to the model. CONCLUSION: The combined effects of multiple oral infections were significantly associated with preterm birth.

Postpartum oral health parameters in women with preterm birth.

OBJECTIVE: It has been suggested that poor oral health and periodontal disease, in particular, associate with adverse birth outcomes. However, previous reports on the topic are conflicting. The objective of the present cross-sectional study was therefore to compare the oral health parameters of a racially and socio-economically homogeneous group of women who gave birth before 259 gestational days (37 weeks) with those of women who went full-term. MATERIAL AND METHODS: We studied various dental parameters, including prevalence of dental caries, gingival bleeding on probing, the probing periodontal pocket depths, and the carriage of periodontal pathogens in 328 all-Caucasian women with singleton births. Seventy-seven of the women had preterm births, while 251 had full-term. Dental data were recorded within 2 days postpartum and analyzed with data from medical history, prenatal care, and delivery records. RESULTS: Preterm mothers had more dental caries (93.5%) than full-term mothers (85.3%) when assessed as carious teeth in the mouth (p=0.06). In clinical and microbiological periodontal health parameters, however, no differences could be seen between the preterm and full-term mothers. Primiparity, low weight-gain, and antimicrobial drug use during pregnancy were the significant predictors for preterm birth. CONCLUSIONS: Although we cannot make any causal linkage, the oral health parameters were no different in women who experienced preterm births compared with those who had full-term births in this cohort. Only established systemic risk factors explained the preterm birth.