Glass half full: Survival analysis of new rural doctor retention in Western Australia

2015 ◽  
Vol 24 (4) ◽  
pp. 258-264 ◽  
Author(s):  
Belinda E. S. Bailey ◽  
Rosalie G. Wharton ◽  
C. D'Arcy J. Holman
Keyword(s):  
Survival Analysis ◽  
Western Australia ◽  
Rural Doctor

The recidivism of homicide offenders in Western Australia

2017 ◽  
Vol 51 (3) ◽  
pp. 395-411 ◽  
Author(s):  
Roderic Broadhurst ◽  
Ross Maller ◽  
Max Maller ◽  
Brigitte Bouhours
Keyword(s):  
Survival Analysis ◽  
Criminal Justice ◽  
High Risk ◽  
Western Australia ◽  
Analysis Techniques ◽  
Attempted Murder ◽  
Prior Record ◽  
Sexual Murder ◽  
Prior Arrest

Popular perceptions about the recidivism of homicide offenders are contradictory, varying from one extreme – that such offenders rarely commit further violent offences – to the opposite, where it is thought that they remain at a high risk of serious reoffending. The present study draws on the records of 1088 persons arrested in Western Australia over the period 1984–2005 for domestic murders and other types of homicides (robbery and sexual murder), including attempted murder, conspiracy to murder, manslaughter (unintentional homicide) and driving causing death. Our database provides up to 22 years follow-up time (for those arrested in 1984) and accounts critically for the first and any subsequent arrests, if they occur. Of the 1088 persons, only 3 were subsequently arrested and charged with a homicide offence event in the follow-up period. Among those arrested for a murder and subsequently released, we estimate a probability of 0.66 (accounting for censoring) of being rearrested for another offence of any type. The corresponding probabilities for those originally arrested for manslaughter or for driving causing death were equal, at 0.43. A dynamic analysis of the longitudinal data by survival analysis techniques is used to reliably estimate these probabilities. Having a prior record increased the risk of re-arrest; for example male non-Aboriginals arrested for murder with at least one prior arrest have an estimated probability of 0.72 of being rearrested for another offence of any type. Their estimated probability of being rearrested for another serious offence was 0.33. These findings should be of interest to courts and correctional agencies in assessing risk at various stages of the administration of criminal justice.

Risk for psychotherapy drop-out in survival analysis: The influence of general change mechanisms and symptom severity.

2020 ◽  
Vol 67 (6) ◽  
pp. 712-722
Author(s):  
Sebastian Gmeinwieser ◽  
Kai Sebastian Schneider ◽  
Maximilian Bardo ◽  
Timo Brockmeyer ◽  
York Hagmayer
Keyword(s):  
Survival Analysis ◽  
Symptom Severity ◽  
Drop Out ◽  
General Change ◽  
Change Mechanisms

Five-year Survival Analysis of a Cohort of Hepatocellular Carcinoma Patients Who Treated at the National Cancer Center, Korea

2007 ◽  
Vol 13 (4) ◽  
pp. 530 ◽  
Author(s):  
Kyung Woo Park ◽  
Joong-Won Park ◽  
Tae Hyun Kim ◽  
Jun Il Choi ◽  
Seong Hoon Kim ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Survival Analysis ◽  
Cancer Center

Persistence of giants: population dynamics of the limpet Scutellastra laticostata on rocky shores in Western Australia

2020 ◽  
Vol 646 ◽  
pp. 79-92
Author(s):  
RE Scheibling ◽  
R Black
Keyword(s):  
Population Dynamics ◽  
Western Australia ◽  
Size Structure ◽  
Survival Rates ◽  
Maximum Size ◽  
High Rate ◽  
Adult Survival ◽  
Rocky Shores ◽  
Adult Size ◽  
Decadal Time Scale

Population dynamics and life history traits of the ‘giant’ limpet Scutellastra laticostata on intertidal limestone platforms at Rottnest Island, Western Australia, were recorded by interannual (January/February) monitoring of limpet density and size structure, and relocation of marked individuals, at 3 locations over periods of 13-16 yr between 1993 and 2020. Limpet densities ranged from 4 to 9 ind. m-2 on wave-swept seaward margins of platforms at 2 locations and on a rocky notch at the landward margin of the platform at a third. Juvenile recruits (25-55 mm shell length) were present each year, usually at low densities (<1 m-2), but localized pulses of recruitment occurred in some years. Annual survival rates of marked limpets varied among sites and cohorts, ranging from 0.42 yr-1 at the notch to 0.79 and 0.87 yr-1 on the platforms. A mass mortality of limpets on the platforms occurred in 2003, likely mediated by thermal stress during daytime low tides, coincident with high air temperatures and calm seas. Juveniles grew rapidly to adult size within 2 yr. Asymptotic size (L∞, von Bertalanffy growth model) ranged from 89 to 97 mm, and maximum size from 100 to 113 mm, on platforms. Growth rate and maximum size were lower on the notch. Our empirical observations and simulation models suggest that these populations are relatively stable on a decadal time scale. The frequency and magnitude of recruitment pulses and high rate of adult survival provide considerable inertia, enabling persistence of these populations in the face of sporadic climatic extremes.

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