Neonatal Circumcision and Penile Problems: An 8-Year Longitudinal Study

PEDIATRICS ◽  
1988 ◽  
Vol 81 (4) ◽  
pp. 537-541
Author(s):  
D. M. Fergusson ◽  
J. M. Lawton ◽  
F. T. Shannon
Keyword(s):  
Longitudinal Study ◽  
New Zealand ◽  
Birth Cohort ◽  
Perinatal Factors ◽  
Neonatal Circumcision ◽  
The Relationship

The prevalence of penile problems was examined in a birth cohort of more than 500 New Zealand children studied from birth to 8 years of age. By 8 years, circumcised children had a rate of 11.1 problems per 100 children, and uncircumcised children had a rate of 18.8 per 100. The majority of these problems were for penile inflammation including balanitis, meatitis, and inflammation of the prepuce. However, the relationship between risks of penile problems and circumcision status varied with the child's age. During infancy, circumcised children had a significantly higher risk of problems than uncircumcised children, but after infancy the rate of penile problems was significantly higher among the uncircumcised. These associations were not changed when the results were adjusted statistically for the effects of a series of potentially confounding social and perinatal factors.

Effects of Single-Sex and Coeducational Schooling on the Gender Gap in Educational Achievement

2008 ◽  
Vol 52 (3) ◽  
pp. 301-317 ◽  
Author(s):  
Sheree J. Gibb ◽  
David M. Fergusson ◽  
L. John Horwood
Keyword(s):  
High School ◽  
Longitudinal Study ◽  
New Zealand ◽  
School Choice ◽  
Birth Cohort ◽  
Gender Gap ◽  
Educational Achievement ◽  
Tertiary Education ◽  
Single Sex ◽  
Health And Development

This study examined the effects of single-sex and coeducational schooling on the gender gap in educational achievement to age 25. Data were drawn from the Christchurch Health and Development Study, a longitudinal study of a birth cohort of 1265 individuals born in 1977 in Christchurch, New Zealand. After adjustment for a series of covariates related to school choice, there were significant differences between single-sex and coeducational schools in the size and direction of the gender gap. At coeducational schools, there was a statistically significant gap favouring females, while at single-sex schools there was a non-significant gap favouring males. This pattern was apparent for educational achievement both at high school and in tertiary education. These results indicate that single-sex schooling may mitigate male disadvantages in educational achievement.

Cumulative incidence of infertility in a New Zealand birth cohort to age 38 by sex and the relationship with family formation

2015 ◽  
Vol 103 (4) ◽  
pp. 1053-1058.e2 ◽  
Author(s):  
Thea van Roode ◽  
Nigel Patrick Dickson ◽  
Alida Antoinette Righarts ◽  
Wayne Richard Gillett
Keyword(s):  
New Zealand ◽  
Birth Cohort ◽  
Cumulative Incidence ◽  
Family Formation ◽  
The Relationship

Australian and New Zealand Biosolids Partnership: Collaboration for more effective biosolids management

2010 ◽  
Vol 5 (2) ◽  
Author(s):  
Andrew Speers ◽  
Allen Gale ◽  
Nancy Penney
Keyword(s):  
New Zealand ◽  
Policy Development ◽  
Sustainable Management ◽  
Best Practice ◽  
Community Consultation ◽  
Critical Research ◽  
Community Attitudes ◽  
Relationship Of ◽  
The Relationship ◽  
Sustainability Framework

This paper describes an international biosolids management initiative, known as the Australian and New Zealand Biosolids Partnership (ANZBP). The ANZBP - known formerly as the Australasian Biosolids Partnership – comprises 33 members dedicated to promoting the sustainable management of biosolids across the two nations. Two critical research projects are described, each of which contributes to the ANZBP goal of promoting the sustainable management of biosolids. The first is a review of community attitudes to biosolids management, the outcomes of which will be used to refine communication tools and methods of community consultation and which will provide input to policy development over time. The second is a review of regulations in place in Australia and New Zealand carried out to identify inconsistencies and improvements that could be made. An outcome of this initiative is potentially the development of a best practice manual. The relationship of the two projects to a sustainability framework adopted by the ANZBP is also described, as is the relationship of the two projects to each other.

Methamphetamine use and psychotic symptoms: findings from a New Zealand longitudinal birth cohort

2021 ◽  
pp. 1-8
Author(s):  
Joseph M. Boden ◽  
James A. Foulds ◽  
Giles Newton-Howes ◽  
Rebecca McKetin
Keyword(s):  
New Zealand ◽  
General Population ◽  
Birth Cohort ◽  
Individual Characteristics ◽  
Psychotic Symptoms ◽  
Confounding Factors ◽  
Long Term Effects ◽  
Methamphetamine Use ◽  
Increased Risk ◽  
Psychosis Risk

Abstract Background This study examined the association between methamphetamine use and psychotic symptoms in a New Zealand general population birth cohort (n = 1265 at birth). Methods At age 18, 21, 25, 30, and 35, participants reported on their methamphetamine use and psychotic symptoms in the period since the previous interview. Generalized estimating equations modelled the association between methamphetamine use and psychotic symptoms (percentage reporting any symptom, and number of symptoms per participant). Confounding factors included childhood individual characteristics, family socioeconomic circumstances and family functioning. Long term effects of methamphetamine use on psychotic symptoms were assessed by comparing the incidence of psychotic symptoms at age 30–35 for those with and without a history of methamphetamine use prior to age 30. Results After adjusting for confounding factors and time-varying covariate factors including concurrent cannabis use, methamphetamine use was associated with a modest increase in psychosis risk over five waves of data (adjusted odds ratio (OR) 1.33, 95% confidence interval (CI) 1.03–1.72 for the percentage measure; and IRR 1.24, 95% CI 1.02–1.50 for the symptom count measure). The increased risk of psychotic symptoms was concentrated among participants who had used at least weekly at any point (adjusted OR 2.85, 95% CI 1.21–6.69). Use of methamphetamine less than weekly was not associated with increased psychosis risk. We found no evidence for a persistent vulnerability to psychosis in the absence of continuing methamphetamine use. Conclusion Methamphetamine use is associated with increased risk of psychotic symptoms in the general population. Increased risk is chiefly confined to people who ever used regularly (at least weekly), and recently.

Assessing the Development of Operator Trust in Automation: A Longitudinal Study of an Autonomous Campus Shuttle

2020 ◽  
Vol 64 (1) ◽  
pp. 1421-1425
Author(s):  
Margaret Fowler ◽  
Farzan Sasangohar ◽  
Bob Brydia
Keyword(s):  
Longitudinal Study ◽  
Significant Relationship ◽  
Autonomous Vehicle ◽  
Student Population ◽  
Tier 1 ◽  
Trust In Automation ◽  
Operational Issues ◽  
The Relationship ◽  
Over Time

A large public tier-1 university hosted an autonomous vehicle on campus for a 12-week demonstration. Throughout the deployment, the vehicle was operated autonomously and used 5 safety operators from the student population to take over shuttle operations, as necessary. Daily and weekly surveys as well as pre-and post-study interviews were used to investigate how operators’ trust developed and changed over time as well as the relationship between trust and operational issues that varied in severity. Results revealed that there was not a significant relationship between trust and severity of operational issues. Trust levels appeared to remain relatively consistent before, during and after the deployment.

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