Biomechanical characteristics of head injuries from falls in children younger than 48 months

2015 ◽  
Vol 101 (4) ◽  
pp. 310-315 ◽  
Author(s):  
Jonathon Hughes ◽  
Sabine Maguire ◽  
Michael Jones ◽  
Peter Theobald ◽  
Alison Kemp
Keyword(s):  
Case Control Study ◽  
Head Injuries ◽  
Skull Fracture ◽  
Abusive Head Trauma ◽  
Intracranial Injury ◽  
Centre Of Gravity ◽  
Significant Difference ◽  
The Mean ◽  
Fall Height ◽  
Control Study

BackgroundA fall-height threshold is important when evaluating the likelihood of structural head injury or abusive head trauma. This study investigates witnessed falls to correlate the fall characteristics with the extent of injury.MethodCase–control study of children aged ≤48 months who attended one hospital following a fall from <3 m (10 ft), comparing cases who sustained a skull fracture or intracranial injury (ICI) with controls, who had minor head injuries. Characteristics included: the mechanism of injury, surface of impact, site of impact to the head and fall height.ResultsForty-seven children had a skull fracture or ICI, while 416 children had minor head injuries. The mean fall height for minor head injuries was significantly lower than that causing skull fracture/ICI (p<0.001). No skull fracture/ICI was recorded in children who fell <0.6 m (2 ft), based on the height of the head centre of gravity. Skull fractures/ICI were more likely in children aged ≤12 months (p<0.001) from impacts to the temporal/parietal or occipital region (p<0.001), impacts onto wood (p=0.004) and falls from a carer's arms, particularly when on stairs (p<0.001). No significant difference was reported between the mean fall heights of children who had a simple skull fracture (n=17) versus those who had a complex fracture or ICI (n=30).ConclusionsAn infant is more likely to sustain a skull fracture/ICI from a fall above a 0.6 m (2 ft) threshold, based on the height of the head centre of gravity, or with a parietal/temporal or occipital impact. These variables should be recorded when evaluating the likelihood of skull fracture/ICI.

Effect of migraine attack on pupil size, accommodation and ocular aberrations

2020 ◽  
pp. 112067212097533
Author(s):  
Merve Beyza Yildiz ◽  
Elvin Yildiz ◽  
Sevcan Balci ◽  
Buse Rahime Hasirci Bayir ◽  
Yılmaz Çetinkaya
Keyword(s):  
Migraine Attack ◽  
Pupil Size ◽  
Case Control Study ◽  
Case Control ◽  
Healthy Controls ◽  
Unilateral Headache ◽  
Significant Difference ◽  
The Mean ◽  
Control Study ◽  
Prospective Case Control Study

Purpose: To evaluate the pupil size, accommodation, and ocular higher-order aberrations (HOAs) in patients with migraine during migraine attacks and compare them with interictal period and healthy controls. Methods: This prospective, case–control study included 48 eyes of 24 patients with migraine and 48 eyes of 24 age and sex-matched healthy controls. Measurements were performed using a Hartmann Shack aberrometer. Accommodative responses to accommodative stimulus ranging from 0 to 5 diopters (D) in increments of 0.5 D were recorded. Spherical, coma, trefoil aberration, and root mean square (RMS) of total HOAs were assessed. Patients with migraine were measured twice during the interictal phase and during migraine attack. Results: The mean pupil size significantly decreased during migraine attack (5.85 ± 0.19 mm) compared with the interictal phase (6.05 ± 0.19 mm) in the patients with migraine ( p = 0.012). There was a significant increase in the accommodative response to accommodative stimulus of 1.5 to 5 D during migraine attack. No significant change was observed in HOAs during migraine attack. In addition, no ictal or interictal period measurements were statistically significantly different from the controls. Comparing symptomatic and non-symptomatic sides in 17 migraine patients with unilateral headache, no significant difference was found in any of the measurements in both ictal and interictal periods. Conclusion: Our results suggest the presence of a subtle oculosympathetic hypofunction in patients with migraine during the ictal period compared to the interictal period. The accommodation status of the eye seems to be affected by this autonomic dysfunction.

scholarly journals Physical and mental growth and development in children with congenital hypothyroidism: a case–control study

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Javad Nazari ◽  
Kimia Jafari ◽  
Maryam Chegini ◽  
Akram Maleki ◽  
Pari MirShafiei ◽  
...  
Keyword(s):  
Congenital Hypothyroidism ◽  
Case Control Study ◽  
Screening Program ◽  
Case Control ◽  
Healthy Children ◽  
Significant Difference ◽  
The Mean ◽  
The Difference ◽  
Children Development ◽  
Control Study

Abstract Introduction The clinical complications of congenital hypothyroidism such as brain disorders are very subtle and are not recognizable in infancy period. They are recognizable when it is too late for treatment or prevention. General screening of newborns is effective in diagnosing congenital hypothyroidism and initiating initial treatment. The aim of this study is to compare the physical and mental growth pattern of children with congenital hypothyroidism with healthy ones. Methods This case–control study was performed on 34 patients and 68 healthy children who were matched in terms of inclusion and exclusion criteria. Children development screening test (ASQ), children development assessment test (Bayley), preschool Wechsler intelligence scale (WPPSI) and age and steps questionnaire of emotional social development (ASQ-SE) were completed by trained questioners. Data were analyzed using STATA software. Results The results indicated that there was no significant difference between the mean of verbal (P = 0.77), non-verbal (P = 0.81) and general (P = 0.66) IQ in permanent and transient patients and healthy individuals. Also, there was no significant difference between the mean of different ranges of ASQ test (including communication, delicate and large movements, problem solving and social) at 12 months and 42 months (P < 0.05). According to Bayley test, there was no significant difference between the cases (permanent and transient) and controls in the cognitive (P = 0.42) and expressive (P = 0.38) categories. The difference was significant in the perceptual (P = 0.011), large (P = 0.03) and delicate (P = 0.04) movements categories. Conclusion This study emphasized on the high effectiveness of neonate hypothyroidism screening program, so that the difference between 3.5 years old children with and without this disease has decreased significantly. Early diagnosis of the patients, while creating beneficial effects for patients and increasing quality of life, cause reduction in the long-term costs of the health system.

scholarly journals Serum vitamin D and immunoglobulin E levels in children of allergic rhinitis: a case-control study from Central India

2021 ◽  
Vol 8 (6) ◽  
pp. 1038
Author(s):  
Payasvi Baweja Sachdeva ◽  
Sheloj Joshi ◽  
Shweta Anand
Keyword(s):  
Vitamin D ◽  
Case Control Study ◽  
Immunoglobulin E ◽  
Serum Vitamin ◽  
Serum Ige ◽  
Serum Vitamin D ◽  
Vitamin D Levels ◽  
Significant Difference ◽  
The Mean ◽  
Control Study

Background: Allergic rhinitis (AR) is the commonest type of non-infective rhinitis. Genetic and environmental factors play an important role in the development of the disease. Researchers are having interest in knowing the role of vitamin D in the pathogenesis of allergy. Immunoglobulin E (IgE) is integral to the pathogenesis of allergic disorders. However, the relationship between serum IgE levels and AR is still a matter of debate. Thus, this study aimed to know serum IgE and serum 25 (OH) vitamin D levels in patients with clinically diagnosed AR and control group.Methods: A case-control study was performed from May 2019 to October 2019 in LNMC and JK hospital. All 54 children with physician diagnosed AR aged 12 to 18 years of both genders who have come in the OPD (total enumeration sampling) during the above mentioned period were enrolled into the study and their 54 healthy counterparts are taken as controls. Other parameters such as age, gender, occupation and region of residence were also compared between the groups.Results: This study found highly significant difference in the mean serum IgE levels while there is a significant difference in the mean serum vitamin D levels between two groups.Conclusions: The study group with AR had significantly higher mean level of serum IgE and lower mean serum vitamin D levels as compared to control groups. However, upon stratification of vitamin D levels, the differences were insignificant. Further studies should be conducted to know the value of IgE as a prognostic factor of AR severity and to throw more light on association of vitamin D with AR.

scholarly journals Characteristics and Transmission Dynamics of COVID-19 in Resident Physicians at a Mexico City Teaching Hospital

2021 ◽  
Vol 2 (3) ◽  
pp. 72-76
Author(s):  
Jessica G. Azcorra-Lopez ◽  
Jesus Reyna-Figueroa ◽  
Eva M. Luna-Rivera ◽  
Berenice Cabañas-Espinosa ◽  
Yamile N. Esquivel-Torruco ◽  
...  
Keyword(s):  
Healthcare Workers ◽  
Infection Prevention ◽  
Case Control Study ◽  
Transmission Dynamics ◽  
Central Tendency ◽  
Resident Physicians ◽  
Significant Difference ◽  
The Mean ◽  
Control Study

Introduction: During the COVID-19 pandemic, hospitals have been busy controlling their spread among healthcare workers, including resident doctors. We seek to characterize and know the transmission dynamics of the SARS-COV-2 infection in the personnel of our hospital. Methodology: 204 resident physicians were followed up, in three parts: Part 1. Training, Part 2. follow-up through the WhatsApp application, Part 3. case-control study; looking for risk factors. The statistical analysis was carried out using measures of central tendency and dispersion, comparison of proportions and rates. As well as the calculation of the odds ratio with a 95% confidence interval; p <0.05 was considered significant. Results: 66 resident physicians were included, 31.8% had a positive result. The mean age was 28.9. The most frequent clinical manifestation was myalgia (66.6%), followed by headache (47%). When comparing with symptomatic resident physicians, with a negative test, there was a significant difference in arthralgia (p = 0.01) and dyspnea (0.05). Noncompliance with training (OR 7.0; 95% CI 2.2-26 and p = 0.000) was significant as a risk factor for infection. Conclusions: Resident physicians must be mostly supervised during infection prevention and containment training.

scholarly journals Tooth eruption sequence and dental crowding: a case-control study

F1000Research ◽  
2014 ◽  
Vol 3 ◽  
pp. 122 ◽  
Author(s):  
Vahid Moshkelgosha ◽  
Negar Khosravifard ◽  
Ali Golkari
Keyword(s):  
Case Control Study ◽  
Case Control ◽  
Mixed Dentition ◽  
Control Group ◽  
Case Group ◽  
Significant Difference ◽  
The Mean ◽  
Mandibular Canine ◽  
Dental Crowding ◽  
Control Study

When cases of dental crowding are identified and diagnosed promptly, interceptive orthodontics is particularly successful.Aim: To assess the differences in the eruption sequence of the mandibular canine and first premolar teeth in children with and without dental crowding.Materials and Methods: Children who attended the Shiraz Dental School's orthodontic clinic (Iran) from September to December 2012 were enrolled in this case-control study. Tooth size arch length discrepancy (TSALD) of all 8-10 year olds was calculated from patients’ dental models. Thirty-six children were randomly selected from those with TSALD of equal or less than 4mm (those with crowding). Each selected case was matched for sex and age with another child (as control) with TSALD>−4mm attending the same clinic, in the same time period. The existing panoramic radiographs were traced and the eruption percentages were measured for mandibular canine and first premolar teeth. The mean difference between canine and first premolar eruption percentages was compared between the case and control groups using the SPSS (version PASW 18) software and a paired sample t-test.Results: Canine and first premolar eruption percentages in the case group were 65.82±13.00 and 78.92±10.15 percent, respectively. The mean eruption percentages for canines and first premolars of the control group were 74.12±14.55 and 75.47±11.60 percent, respectively. There was a significant difference in pre-eruptive positions of canine and first premolar teeth in those with moderate to severe crowding when compared to the control group (p<0.001).Conclusion: These findings may improve the early diagnosis of children with high risk of developing moderate to severe crowding during mixed dentition.

scholarly journals Association Between Serum Cadmium and Arsenic Levels with Bladder Cancer: A Case-control Study

2021 ◽  
Vol 14 (7) ◽  
Author(s):  
Vahid Moazed ◽  
Elham Jafari ◽  
Mohammad Reza Ebadzadeh ◽  
Amin Pourzare ◽  
Hamid Reza Gharehchahi ◽  
...  
Keyword(s):  
Bladder Cancer ◽  
Regression Models ◽  
Case Control Study ◽  
Case Control ◽  
P Value ◽  
Control Groups ◽  
Significant Difference ◽  
The Mean ◽  
And Control ◽  
Control Study

Background: Bladder cancer is the second most common cancer of the genitourinary system and the eighth cause of cancer death. In addition to known risk factors such as smoking and urinary stones, trace elements are also effective in causing bladder cancer and other cancers. Objectives: This study was conducted to determine the association between bladder cancer and the carcinogens cadmium and arsenic. Methods: This case-control study was conducted on 40 patients with bladder cancer admitted to Shahid Bahonar Hospital and a control group of 40 healthy individuals in Kerman, Iran, in 2018. The serum levels of arsenic and cadmium were measured by atomic absorptiometry. The paired t-test and chi-square tests were employed to assess the difference between cases and controls groups. An unadjusted and 2 multivariable conditional regression models were separately adjusted on sex, family cancer history, residence, occupation, and smoking and were used to estimate odds ratios (OR) and 95% confidence intervals (95% CI) to assess the association between arsenic and cadmium levels and bladder cancer. The statistical software SPSS version 26 and R software version 3.6.3 were used to perform the statistical analyses. Results: The mean cadmium level was 2.99 ± 1.45 and 2.59 ± 0.46 in the case and control groups, respectively, with no statistically significant difference between the groups (P = 0.100). The mean arsenic level was 2.12 ± 1.04 and 1.43 ± 0.73 in the case and control groups, respectively, demonstrating a statistically significant difference between the groups (P = 0.001). Unadjusted and adjusted conditional logistic regression models indicated significant association between arsenic levels and bladder cancer (unadjusted: odds ratio (OR) (95% CI): 0.66 (0.46 - 0.94), P-value = 0.022; adjusted: OR (95% CI): 0.64 (0.44 - 0.92), P-value = 0.018). Conclusions: Overall, cadmium and arsenic levels are higher in patients with bladder cancer, with a statistically significant difference for arsenic. However, these elements are not interrelated and are not related to other factors.

scholarly journals Association Between Specific Indoor Air Pollutants and Pneumonia Episodes in Children Under Five in Abuja, Nigeria: A Case-control Study

2020 ◽  
Author(s):  
Enemona Emmanuel Adaji ◽  
Michael Clifford ◽  
Jack Gibson ◽  
Magdalena Opazo Breton ◽  
Revati Phalkey
Keyword(s):  
Indoor Air ◽  
Air Pollutants ◽  
Case Control Study ◽  
Children Under Five ◽  
Under Five ◽  
Significant Difference ◽  
The Mean ◽  
Indoor Air Pollutants ◽  
Mean Concentration ◽  
Control Study

Abstract Background: Pneumonia causes most death in children under five globally. Indoor air pollution has been reported to increase the risk of children to pneumonia. ObjectiveTo investigate the association between specific indoor air pollutants and pneumonia episodes in children under five.MethodsUsing a case-control study design, we compared exposure of cases and controls to specific pollutants (PM2.5, CO, BC and PM1), using battery operated aerosol monitors. Data was analysed using Wilcoxon signed-rank test.ResultsThe mean PM2.5 was higher in controls compared to cases. PM2.5 highest mean recorded for controls was 177 µg/m3. There was a significant difference between cases and controls for 10 hours (p-value 0.0147), 15 hours (p-value 0.0111) and 20-24 hours (p-value 0.0296) for PM2.5. No significant difference in CO concentration between cases and controls, the highest CO mean concentration recorded being 2930 µg/m3. Similarly, PM1 was consistently higher in controls compared to cases. However, this difference was not significant from exposure to PM1 between cases and controls (P-value>0.05), with the highest PM1 mean concentration recorded being 91 µg/m3. There was a significant difference (p-value 0.0260) in exposure to Black Carbon between cases and controls. BC was higher in households of cases compared to controls, with the mean average of BC for cases 4350 µg/m3 and controls 4126 µg/m3. In this study, BC is positively associated with a pneumonia episode. We also report the importance of unmodifiable and behaviourally modifiable factors on pneumonia episode in children.Discussion: In conclusion, we show that children present during cooking, number of available windows and MUAC increased the likelihood of a pneumonia episode. We recommend household level behaviour changes and targeted IMCI including early effective detection and treatment of childhood pneumonia particularly in high pollution areas in Nigeria.

scholarly journals Association Between Specific Indoor Air Pollutants and Pneumonia Episodes in Children Under Five in Abuja, Nigeria: A Case-control Study

2020 ◽  
Author(s):  
Enemona Emmanuel Adaji ◽  
Michael Clifford ◽  
Jack Gibson ◽  
Magdalena Opazo Breton ◽  
Revati Phalkey
Keyword(s):  
Indoor Air ◽  
Air Pollutants ◽  
Case Control Study ◽  
Children Under Five ◽  
Under Five ◽  
Significant Difference ◽  
The Mean ◽  
Indoor Air Pollutants ◽  
Mean Concentration ◽  
Control Study

Abstract Background: Pneumonia causes most death in children under five globally. Indoor air pollution has been reported to increase the risk of children to pneumonia. ObjectiveTo investigate the association between specific indoor air pollutants and pneumonia episodes in children under five.MethodsUsing a case-control study design, we compared exposure of cases and controls to specific pollutants (PM2.5, CO, BC and PM1), using battery operated aerosol monitors. Data was analysed using Wilcoxon signed-rank test.ResultsThe mean PM2.5 was higher in controls compared to cases. PM2.5 highest mean recorded for controls was 177 µg/m3. There was a significant difference between cases and controls for 10 hours (p-value 0.0147), 15 hours (p-value 0.0111) and 20-24 hours (p-value 0.0296) for PM2.5. No significant difference in CO concentration between cases and controls, the highest CO mean concentration recorded being 2930 µg/m3. Similarly, PM1 was consistently higher in controls compared to cases. However, this difference was not significant from exposure to PM1 between cases and controls (P-value>0.05), with the highest PM1 mean concentration recorded being 91 µg/m3. There was a significant difference (p-value 0.0260) in exposure to Black Carbon between cases and controls. BC was higher in households of cases compared to controls, with the mean average of BC for cases 4350 µg/m3 and controls 4126 µg/m3. In this study, BC is positively associated with a pneumonia episode. We also report the importance of unmodifiable and behaviourally modifiable factors on pneumonia episode in children.Discussion: In conclusion, we show that children present during cooking, number of available windows and MUAC increased the likelihood of a pneumonia episode. We recommend household level behaviour changes and targeted IMCI including early effective detection and treatment of childhood pneumonia particularly in high pollution areas in Nigeria.

scholarly journals Platelet Count In Preeclampsia

2013 ◽  
Vol 18 (2) ◽  
pp. 24-26 ◽  
Author(s):  
Razia Sultana ◽  
SM Fazlul Karim ◽  
Farhana Atia ◽  
Shahnila Ferdousi ◽  
Selina Ahmed
Keyword(s):  
Platelet Count ◽  
Pregnant Women ◽  
Case Control Study ◽  
Case Control ◽  
Third Trimester ◽  
Medical College ◽  
Significant Difference ◽  
The Mean ◽  
The Relationship ◽  
Control Study

Preeclampsia is one of the most leading causes of maternal mortality in developing countries like Bangladesh. Several studies have demonstrated the relationship between platelets count and preeclampsia. The aim of the study was to assess the association of platelets count with preeclampsia. A case control study was conducted in the Department of Biochemistry, Dhaka Medical College, Dhaka from July 2010 to June 2011. A total number of 100 pregnant women in third trimester of pregnancy attending in Obstetrics & Gynaecology Department of Dhaka Medical Hospital were selected as study subjects. Among them 50 diagnosed cases of preeclampsia were selected as cases and 50 normal healthy pregnant women as controls. Platelet count was measured in all study subjects. The mean platelet count in cases and controls were 1,44,260±96,472 and 1,98,100±51,219 respectively. The present study showed significant difference of mean platelet count between cases and controls. The study revealed that low platelets count is associated with preeclampsias. DOI: http://dx.doi.org/10.3329/jdnmch.v18i2.16018 J. Dhaka National Med. Coll. Hos. 2012; 18 (02): 24-26

scholarly journals Rainfall-Associated Bronchospasm Epidemics: The Epidemiological Effects of Air Pollutants and Weather Variables

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Kambiz Masoumi ◽  
Maryam Haddadzadeh Shoushtari ◽  
Arash Forouzan ◽  
Ali Asgari Darian ◽  
Maryam Dastoorpoor ◽  
...  
Keyword(s):  
Risk Factors ◽  
Significant Relationship ◽  
Air Pollutants ◽  
Case Control Study ◽  
Case Control ◽  
Weather Variables ◽  
Significant Difference ◽  
The Mean ◽  
Epidemiological Effects ◽  
Control Study

Background. This study compares different risk factors in patients visiting a hospital during five rainfall-associated bronchospasm epidemics in Ahvaz and those visiting on other occasions.Methods. This case-control study was conducted on 5307 patients with bronchospasm admitted to the Emergency Department of Imam Khomeini Hospital in Ahvaz (Iran) from late October to December (as the epidemic) and 916 patients admitted from late January to March (as the nonepidemic) in 2011 to 2015.Results. A total of the 41.7% of the cases and 48.8% of the controls had episodes of bronchospasm, suggesting a significant difference between the two groups (P<0.001). The mean concentrations of PM10, NO, NO2, and NOxpollutants (except O3) were significantly higher in the nonepidemic periods (P<0.05). The adjusted analysis showed a direct significant relationship between emergency respiratory admissions and each unit of increase in NO and SO2concentration during the epidemic periods and NO2concentration during the nonepidemic periods. During the epidemic periods, a direct and significant relationship was also observed between respiratory admissions and each unit of increase in relative humidity and evaporation.Conclusion. The results suggest that certain pollutants and weather variables are associated with the risk of emergency respiratory admissions during epidemic periods.

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