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421954 occurrences (No.**40** in the rank) during 5 years in the PubMed. [cache]

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421954 occurrences (No.

417) Two members of the extended Tarone-Ware scheme accomplish the estimation of intuitively interpretable average hazard ratios, also under censoring and time-varying relative risk which is achieved by an inverse probability of censoring weighting. |

PMID:22167231 DOI:10.1177/0962280211431022 |

2015 Statistical methods in medical research |

* Non-parametric estimation of relative risk in survival and associated tests. |

- We extend the Tarone and Ware scheme of weighted log-rank tests to cover the associated weighted Mantel-Haenszel estimators of relative risk. Weighting functions previously employed are critically reviewed. The notion of an average hazard ratio is defined and its connection to the effect size measure P(Y > X) is emphasized. The connection makes estimation of P(Y > X) possible also under censoring. Two members of the extended Tarone-Ware scheme accomplish the estimation of intuitively interpretable average hazard ratios, also under censoring and time-varying relative risk which is achieved by an inverse probability of censoring weighting. The empirical properties of the members of the extended Tarone-Ware scheme are demonstrated by a Monte Carlo study. The differential role of the weighting functions considered is illustrated by a comparative analysis of four real data sets. |

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(1)138 of | (9)9 in | (17)4 factors, | (25)2 managers |

(2)72 factors | (10)7 group | (18)4 stratification | (26)2 mortality |

(3)40 for | (11)6 ratio | (19)4 was | (27)2 perception |

(4)24 factor | (12)5 behavior | (20)3 groups | (28)2 rates |

(5)23 and | (13)5 is | (21)3 infants | (29)2 the |

(6)16 *null* | (14)5 patients | (22)2 among | |

(7)13 assessment | (15)5 to | (23)2 during | |

(8)10 score | (16)4 areas | (24)2 estimators |

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--- **WordNet** output for **risk** ---
=>1.損害の恐れ, 危険, 冒険, リスク, 2.危険にさらす, 3.敢えてする, 被保険者, 被保険物, 危険にさらす,
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Overview of noun risk
The noun risk has 4 senses (first 2 from tagged texts)
1. (4) hazard, jeopardy, peril, risk, endangerment -- (a source of danger; a possibility of
incurring loss or misfortune; "drinking alcohol is a health hazard")
2. (2) risk, peril, danger -- (a venture undertaken without regard to possible loss or injury; "he
saw the rewards but not the risks of crime"; "there was a danger he would do the wrong thing")
3. risk, risk of infection -- (the probability of becoming infected given that exposure to an
infectious agent has occurred)
4. risk, risk of exposure -- (the probability of being exposed to an infectious agent)
Overview of verb risk
The verb risk has 2 senses (first 2 from tagged texts)
1. (8) risk, put on the line, lay on the line -- (expose to a chance of loss or damage; "We risked
losing a lot of money in this venture"; "Why risk your life?"; "She laid her job on the line when
she told the boss that he was wrong")
2. (2) gamble, chance, risk, hazard, take chances, adventure, run a risk, take a chance -- (take a
risk in the hope of a favorable outcome; "When you buy these stocks you are gambling")
--- **WordNet** end ---