Additive gamma frailty models with applications to competing risks in related individuals
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Additive gamma frailty models with applications to competing risks in related individuals. / Eriksson, Frank; Scheike, Thomas.
In: Biometrics, Vol. 71, No. 3, 09.2015, p. 677–686.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Additive gamma frailty models with applications to competing risks in related individuals
AU - Eriksson, Frank
AU - Scheike, Thomas
N1 - © 2015, The International Biometric Society.
PY - 2015/9
Y1 - 2015/9
N2 - Epidemiological studies of related individuals are often complicated by the fact that follow-up on the event type of interest is incomplete due to the occurrence of other events. We suggest a class of frailty models with cause-specific hazards for correlated competing events in related individuals. The frailties are based on sums of gamma distributed variables and offer closed form expressions for the observed intensities. An inference procedure with a recursive baseline estimator is proposed, and its large sample properties are established. The estimator readily handles cluster left-truncation as occurring in the Nordic twin registers. The performance in finite samples is investigated by simulations and an example on prostate cancer in twins is provided for illustration.
AB - Epidemiological studies of related individuals are often complicated by the fact that follow-up on the event type of interest is incomplete due to the occurrence of other events. We suggest a class of frailty models with cause-specific hazards for correlated competing events in related individuals. The frailties are based on sums of gamma distributed variables and offer closed form expressions for the observed intensities. An inference procedure with a recursive baseline estimator is proposed, and its large sample properties are established. The estimator readily handles cluster left-truncation as occurring in the Nordic twin registers. The performance in finite samples is investigated by simulations and an example on prostate cancer in twins is provided for illustration.
U2 - 10.1111/biom.12326
DO - 10.1111/biom.12326
M3 - Journal article
C2 - 26033330
VL - 71
SP - 677
EP - 686
JO - Biometrics
JF - Biometrics
SN - 0006-341X
IS - 3
ER -
ID: 140626728