ELIZA cgi-bash version rev. 1.90
- Medical English LInking keywords finder for the PubMed Zipped Archive (ELIZA) -
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kwic search for new out of >500 occurrences
486851 occurrences (No.30 in the rank) during 5 years in the PubMed. [cache]
188) Based on two sets of molecular data and a simulation study, we show that violations of the regularity assumptions may lead to over-optimistic estimates of prediction accuracy and may therefore result in biased conclusions regarding the clinical utility of new biomarkers.
* On the validity of time-dependent AUC estimators.
- Recent developments in molecular biology have led to the massive discovery of new marker candidates for the prediction of patient survival. To evaluate the predictive value of these markers, statistical tools for measuring the performance of survival models are needed. We consider estimators of discrimination measures, which are a popular approach to evaluate survival predictions in biomarker studies. Estimators of discrimination measures are usually based on regularity assumptions such as the proportional hazards assumption. Based on two sets of molecular data and a simulation study, we show that violations of the regularity assumptions may lead to over-optimistic estimates of prediction accuracy and may therefore result in biased conclusions regarding the clinical utility of new biomarkers. In particular, we demonstrate that biased medical decision making is possible even if statistical checks indicate that all regularity assumptions are satisfied.
=>新発見の, 新しい, 現代的な, 新参の
Overview of adj new
The adj new has 11 senses (first 5 from tagged texts)
1. (310) new -- (not of long duration; having just (or relatively recently) come into being or been
made or acquired or discovered; "a new law"; "new cars"; "a new comet"; "a new friend"; "a new
year"; "the New World")
2. (36) fresh, new, novel -- (original and of a kind not seen before; "the computer produced a
completely novel proof of a well-known theorem")
3. (11) raw, new -- (lacking training or experience; "the new men were eager to fight"; "raw
recruits")
4. (5) new, unexampled -- (having no previous example or precedent or parallel; "a time of
unexampled prosperity")
5. (3) new -- (other than the former one(s); different; "they now have a new leaders"; "my new car
is four years old but has only 15,000 miles on it"; "ready to take a new direction")
6. new -- (unaffected by use or exposure; "it looks like new")
7. newfangled, new -- ((of a new kind or fashion) gratuitously new; "newfangled ideas"; "she buys
all these new-fangled machines and never uses them")
8. New -- (in use after medieval times; "New Eqyptian was the language of the 18th to 21st
dynasties")
9. Modern, New -- (used of a living language; being the current stage in its development; "Modern
English"; "New Hebrew is Israeli Hebrew")
10. new, young -- ((of crops) harvested at an early stage of development; before complete maturity;
"new potatoes"; "young corn")
11. new -- (unfamiliar; "new experiences"; "experiences new to him"; "errors of someone new to the
job")
Overview of adv new
The adv new has 1 sense (first 1 from tagged texts)
1. (1) newly, freshly, fresh, new -- (very recently; "they are newly married"; "newly raised
objections"; "a newly arranged hairdo"; "grass new washed by the rain"; "a freshly cleaned floor";
"we are fresh out of tomatoes")
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