Introduction The heart rate (HR) is useful for the monitoring of patients, but almost no studies have been found which describe their variations according to different geographic locales and altitudes using centiles in children and adults. Methodology Descriptive, cross-sectional study of secondary data. Measurements were taken with a calibrated pulse oximeter; our participants resided in host cities for more than 2 months and underwent clinical evaluations by physicians. The results were categorized according to their age group and the altitude of residence using centile charts. Results Our sample size consisted of 6,289 subjects across different villages in Peru. Using Pearson correlation between HR and altitude, it was found in the group of patients aged 1–5 years, a coefficient of -0.118 (p value = 0.012), in the group of patients aged 6–17, 0.047 (p value = 0.025), in the group of patients aged 18–50, -0.044 (p value = 0.041) and for the group of patients aged 51–80, 0.042 (p value = 0.256). In the groups of 1–5, 6–17 and 18–50 years of age, the variations were negligible but statistically significant due to our large sample size. When all of the data was evaluated, HR values were also found to have negligible variations according to the residence altitude, with a Pearson coefficient of -0.033 (p value = 0.009). Centiles charts were used to describe the distribution of HR for different age groups by altitude of residence. Conclusion There are minimal variations of the HR according to the altitude of residence in all age groups.

Objective: To identify the association between the reference time and the maternal mortality cause in the Regional Hospital Materno Infantil 'El Carmen'. Methods: Analytical, retrospective, cross-sectional study, based on data from all cases of maternal death at the Hospital Regional Materno Infantil 'El Carmen'. Census study that covered all the deceased mothers attended at that hospital during the period 2009-2015 and that their data were found on the basis of the establishment; Clinical Histories were excluded with incomplete information, or from previous periods. Results: Of the 29 patients who died since 2009, the median age was 28.5 years (interquartile range: 27-35 years of age); There were statistically significant differences in the time of transfer (p <0.001), the type of complication (p = 0.019) and in the final cause of death (p <0.001). It was found that the indirect causes of death had a longer reference time (67.5 minutes of the indirect cause versus 15 minutes of the direct cause), being this statistically significant (p = 0.0387). Conclusion: There is an increasing tendency to

Introduction: There are individuals who still refuse to wear seat belts, despite its effectiveness in reducing morbidity and mortality in road traffic accidents. We aimed to determine the prevalence and risk factors according to the use of seat belts among public transport drivers in Tacna, Peru. Methodology: This analytical transversal study was carried out among public transport drivers (buses and taxis) in a Peruvian city. Questionnaires were used to evaluate the general and occupational characteristics and the use of seat belts (observed). Descriptive statistics and risk factors were obtained, these latter through generalized linear models. Results: Of the 460 drivers, 77% used their seat belts, with a difference in use depending on the type of public transport (p<0.001). In the multivariate model, the risk of not using the belt was associated with the following: older age (p<0.001), having complete studies (p<0.001), a higher level/category of driving license (3 categories had p<0.001), having a higher number of previous road traffic accidents (p=0.011), and received medical attention in that accident (p<0.001), those who reported using a cell phone while driving (p=0.005), if the co-driver's belt had 3 anchorage points (p<0.001), and working for > 5 hours that day (p=0.002). However, male drivers and those who had their belt with 3 anchorage points had greater use (both p<0.001). Conclusions: One in five drivers did not use a seat belt, and important characteristics of those who did not comply with this traffic law were evaluated to generate control and intervention measures. Keys words: Seat belts; drivers; public transport; occupational health; Peru. (Source: NLM MeSH)

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Introduction There are individuals who still refuse to wear seat belts, despite its effectiveness in reducing morbidity and mortality in road traffic accidents. We aimed to determine the prevalence and risk factors according to the use of seat belts among public transport drivers in Tacna, Peru. Methodology This analytical transversal study was carried out among public transport drivers (buses and taxis) in a Peruvian city. Questionnaires were used to evaluate the general and occupational characteristics and the use of seat belts (observed). Descriptive statistics and risk factors were obtained, these latter through generalized linear models. Results Of the 460 drivers, 77% used their seat belts, with a difference in use depending on the type of public transport (p<0.001). In the multivariate model, the risk of not using the belt was associated with the following: older age (p<0.001), having complete studies (p<0.001), a higher level/category of driving license (3 categories had p<0.001), having a higher number of previous road traffic accidents (p = 0.011), and received medical attention in that accident (p<0.001), those who reported using a cell phone while driving (p = 0.005), if the co-driver’s belt had 3 anchorage points (p<0.001), and working for > 5 hours that day (p = 0.002). However, male drivers and those who had their belt with 3 anchorage points had greater use (both p<0.001). Conclusions One in five drivers did not use a seat belt, and important characteristics of those who did not comply with this traffic law were evaluated to generate control and intervention measures.