In this section, we demonstrate an application of the models detailed in Sect. 3. The
dataset includes 205 patients observed after operation for removal of malignant melanoma
in the period 1962–1977. The patients were followed until 1977. These data are
available in the timereg package in R (Scheike 2009). The observed time (T ) ranges
from 10 to 5565 days (from 0.0274 to 15.25 years, with mean = 5.9 and standard
deviation = 3.1 years) and refers to the time until the patient’s death or the censoring
time. Patients dead from other causes, as well as patients still alive at the end of the
study are censored observations (72%). We take ulceration status (absent, n = 115;
present, n = 90) and tumor thickness (in mm, mean = 2.92 and standard deviation =
2.96) as covariates. Remembering the identifiability issue in Sect. 4, in the destructive
exponentially weighted Poisson and the negative binomial models the probability p is
linked only to tumor thickness, whereas the parameter η is linked only to ulceration
an individual before the treatment and the untruncated compound discrete distribution
to consider the chance of cure after a given treatment. For the practical purpose,
the destructive weighted Poisson cure rate model formulated in this paper may be
helpful to assess whether the probability of the presence of the j-th competing cause
or the cured proportion are significant to justify the fitness, follow-up time and risk
prediction.
Finally, we believe that the destructive Poisson cure rate models are very helpful
for the global understanding of the variety of infection processes and the carcinogenic
effect of prolonged irradiation during some specified period of time (Klebanov et
al. 1993; Tournoud and Ecochard 2007). Indeed, these will be a subject of a future
research from the classical and Bayesian points of view.
In this section, we demonstrate an application of the models detailed in Sect. 3. The
dataset includes 205 patients observed after operation for removal of malignant melanoma
in the period 1962–1977. The patients were followed until 1977. These data are
available in the timereg package in R (Scheike 2009). The observed time (T ) ranges
from 10 to 5565 days (from 0.0274 to 15.25 years, with mean = 5.9 and standard
deviation = 3.1 years) and refers to the time until the patient’s death or the censoring
time. Patients dead from other causes, as well as patients still alive at the end of the
study are censored observations (72%). We take ulceration status (absent, n = 115;
present, n = 90) and tumor thickness (in mm, mean = 2.92 and standard deviation =
2.96) as covariates. Remembering the identifiability issue in Sect. 4, in the destructive
exponentially weighted Poisson and the negative binomial models the probability p is
linked only to tumor thickness, whereas the parameter η is linked only to ulceration
an individual before the treatment and the untruncated compound discrete distribution
to consider the chance of cure after a given treatment.เพื่อวัตถุประสงค์ในทางปฏิบัติ
ทําลายรักษาอัตราถัวปัวซงสูตรในรูปแบบกระดาษนี้อาจเป็นประโยชน์เพื่อประเมินว่า
ความน่าจะเป็นของสถานะของ j-th แข่งขันเพราะ
หรือหายสัดส่วนสำคัญที่จะปรับฟิตเนส , เวลาติดตามและการทำนายความเสี่ยง
.
ในที่สุด เราเชื่อว่าการรักษาอัตราปัวส์ซอง รุ่นที่มีประโยชน์มาก
for the global understanding of the variety of infection processes and the carcinogenic
effect of prolonged irradiation during some specified period of time (Klebanov et
al. 1993; Tournoud and Ecochard 2007). Indeed, these will be a subject of a future
research from the classical and Bayesian points of view.
การแปล กรุณารอสักครู่..
