Colonization Levels of Streptococcus Mutans between Mother and Infant: A Postnatal Prospective Cohort Study

2014 ◽  
Vol 38 (3) ◽  
pp. 197-200 ◽  
Author(s):  
S Ruiz-Rodriguez ◽  
V Lacavex-Aguilar ◽  
M Pierdant-Perez ◽  
P Mandeville ◽  
M Santos-Diaz ◽  
...  
Keyword(s):  
Cohort Study ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Direct Relationship ◽  
Total Sample ◽  
Test Results ◽  
Sample Collection ◽  
Gram Staining ◽  
Activity Test ◽  
Oral Sample

Objective: To investigate the possible association between maternal S. mutans levels and those of the infant during the period between birth and 5 months and evaluate possible risk factors in the S mutans colonization. Study Design: A prospective cohort study was carried out comprising 62 infants and their mothers, selected at the time of childbirth. For each infant, a sample swab was taken at 0, 15, 30, 90, and 150 days postpartum; on the same days, a sample was obtained from the mothers. TYCSB medium was employed for identifying the microorganism, which was later confirmed by Gram staining, the catalase activity test, and the API strep test. Results: The final total sample consisted of 60 infants, from which S. mutans was detected in only 2 (3%) at the 150th day of oral sample collection. Of the sample of 60 mothers, 54 exhibited colonization levels. Conclusions: In the studied sample pairs up to 150 days, it was not possible to demonstrate the presence of a direct relationship between maternal S. mutans oral levels.

scholarly journals Adverse maternal outcomes of pregnancy induced hypertension among pregnant women in Tigray Regional State, Ethiopia: a prospective cohort study

2019 ◽  
Author(s):  
Abadi Kidanemariam Berhe ◽  
Abiodun O. ILESANMI ◽  
Christopher O. AIMAKHU ◽  
Afework Mulugeta
Keyword(s):  
Cohort Study ◽  
Data Analysis ◽  
Prospective Cohort Study ◽  
Medical Records ◽  
Prospective Cohort ◽  
Total Sample ◽  
Maternal Outcomes ◽  
Pregnancy Induced Hypertension ◽  
Regional State ◽  
Induced Hypertension

Abstract Objective The objective of this study was to assess the effect of pregnancy-induced hypertension on adverse maternal outcomes in Tigray Regional State, Ethiopia. A prospective cohort study was conducted on a total sample of 782 pregnant women attending antenatal care in hospitals of Tigray regional state, Ethiopia. Data were collected using interviewer-administered questionnaire and review of their medical records from February 1, 2018, to February 30, 2019. Data analysis was performed using Stata version 14.0.Results The overall adverse maternal outcome was 67.7% among women with pregnancy-induced hypertension and 25.1% among normotensive women. Specifically women with pregnancy-induced hypertension were at higher risk of developing Antepartum hemorrhage (Adjusted RR=1.4(1.1,2.5)), postpartum hemorrhage (RR=2.6(1.3,4.9)), induction of labor (RR=5.9(4.0,8.7)) and delivering by cesarean section (RR=2.1(1.6,2.8)) compared to normotensive women.

scholarly journals 1322A pilot study of faecal sample collection from prospective cohort study participants

2021 ◽  
Vol 50 (Supplement_1) ◽  
Author(s):  
Fiona Bruinsma ◽  
Graham Giles ◽  
Brigid Lynch ◽  
Theresa Whalen ◽  
Helen Tsimiklis ◽  
...  
Keyword(s):  
Cohort Study ◽  
Pilot Study ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Faecal Sample ◽  
Sample Collection ◽  
Faecal Samples ◽  
Significant Difference ◽  
Study Participants ◽  
Gut Microbial Community

Abstract Background Faecal specimens offer a relatively accessible means of assessing the gut microbial community. We conducted a pilot study to compare the feasibility of different protocols for self-collection of faecal specimens from Australian Breakthrough Cancer (ABC) Study participants. Methods Pilot study participants were randomly selected from ABC Study participants who had not yet been invited to participate in follow-up. All pilot study participants were asked to provide a faecal sample using FOBT cards and complete a ‘day of sample’ questionnaire. Participants were randomised to 1 of 4 groups defined by combination of (i) a request (or not) to also provide a faecal sample using a tube containing 2.5ml of 95% ethanol and (ii) a request (or not) to complete a food frequency questionnaire. Results 1,136 ABC Study participants were invited to participate in the pilot study. Of the 56% that opted in, 88% returned the requested sample. Very few participants (5%) actively opted out. Overall, 49% of invited participants returned a sample. There was no statistically significant difference between the groups in the percentage of participants who completed the pilot study. Conclusions The pilot study demonstrated the feasibility of self-collection of faecal samples. Increasing the time commitment and complexity (through provision of an additional sample suspended in ethanol and a FFQ) did not reduce the likelihood of successful completion. Key messages The findings demonstrate the feasibility of collecting faecal samples both on an FOBT card and in a tube containing ethanol, and a lengthy FFQ, within a prospective cohort study.

scholarly journals Cognitive test results are associated with mortality and rehospitalization in heart failure: Swedish prospective cohort study

2020 ◽  
Vol 7 (5) ◽  
pp. 2948-2955
Author(s):  
Hannes Holm ◽  
Erasmus Bachus ◽  
Amra Jujic ◽  
Erik D. Nilsson ◽  
Benjamin Wadström ◽  
...  
Keyword(s):  
Heart Failure ◽  
Cohort Study ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Cognitive Test ◽  
Test Results

scholarly journals Prospective cohort study of workers diagnosed with COVID-19 and subsequent unemployment

2021 ◽  
Author(s):  
Tomohisa Nagata ◽  
Masako Nagata ◽  
Ayako Hino ◽  
Seiichiro Tateishi ◽  
Akira Ogami ◽  
...  
Keyword(s):  
Cohort Study ◽  
Prospective Cohort Study ◽  
Prospective Cohort ◽  
Odds Ratio ◽  
Close Contact ◽  
Total Sample ◽  
Baseline Survey ◽  
History Of ◽  
Multilevel Logistic Model

Objectives: The purpose of this study was to investigate the relationships of workers being diagnosed with coronavirus disease 2019 (COVID-19) and being identified as close contacts of infected persons with unemployment in Japan. Methods: This was a prospective cohort study using questionnaires about COVID-19 administered to Japanese workers. A baseline survey conducted on December 22-25, 2020, was used to determine history of being diagnosed with COVID-19 or being identified as a close contact of an infected person. Unemployment since the baseline survey was ascertained with a follow-up survey on February 18 and 19, 2021. The odds ratios of unemployment were estimated using a multilevel logistic model with adjusted covariates nested in prefecture of residence. Results: Women (n=8,771) accounted for 44% of the total sample (n=19,941), and the mean age was 48.0 years. In terms of unemployment because of negative reasons, the multivariate analysis showed that the odds ratio of unemployment associated with being diagnosed with COVID-19 was 2.18 (95% CI: 1.05-4.55) and that the odds ratio associated with being identified as a close contact was 0.93 (95% CI: 0.29-2.95). Conclusions: There is an association between workers being diagnosed with COVID-19 and unemployment. Occupational health professionals should follow up closely with workers diagnosed with COVID-19 after they return to work to prevent them from becoming unemployed against their will.

Organizational Justice and Health of Employees: Prospective Cohort Study.

2013 ◽  
Author(s):  
Mika Kivimaki ◽  
Marko Elovainio ◽  
Jussi Vahtera ◽  
Marianna Virtanen ◽  
Jane E. Ferrie
Keyword(s):  
Cohort Study ◽  
Organizational Justice ◽  
Prospective Cohort Study ◽  
Prospective Cohort

Cynical distrust increases breast cancer risk: Evidence from a prospective cohort study

2002 ◽  
Author(s):  
A. R. Aro ◽  
H. J. de Koning ◽  
K. Vehkalahti ◽  
P. Absetz ◽  
M. Schreck ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Cohort Study ◽  
Breast Cancer Risk ◽  
Cancer Risk ◽  
Prospective Cohort Study ◽  
Prospective Cohort
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