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Statistical Methods in Medical Research 4ed

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Kendall's S 278±282<br />

Kendall's 290<br />

Kernel smooth<strong>in</strong>g 306, 389±391, 532<br />

Kidney size 405, 406<br />

Kolmogorov±Smirnov test 373<br />

Lilliefors modification 373<br />

Kruskal±Wallis test 287, 288<br />

Kurtosis 406<br />

Large samples 81, 86, 94, 163, 170<br />

Latent roots 456±459, 477<br />

Lat<strong>in</strong> square 257±261<br />

balanced for residual effect 634<br />

randomization 258<br />

replication 260, 261<br />

Lattice<br />

designs 264<br />

squares 264<br />

Lead time 708, 709<br />

Least significant difference 223<br />

Least squares 190, 338, 339, 409<br />

generalized 347<br />

iterative generalized 423<br />

iterative weighted 490<br />

penalized 391±397<br />

Length-biased sampl<strong>in</strong>g 708, 710<br />

Leukaemia, cluster<strong>in</strong>g <strong>in</strong> 711, 713<br />

Levels of factors 246, 247<br />

Leverage 366, 495<br />

Life<br />

expectation of 570<br />

table 569±576, 740<br />

abridged 569<br />

adjustment for number at risk 573<br />

cohort 569<br />

current 569<br />

<strong>in</strong> follow-up studies 571±574<br />

Kaplan±Meier method 575, 576<br />

modified 686<br />

product-limit method (see Kaplan±Meier<br />

method)<br />

sampl<strong>in</strong>g variation <strong>in</strong> 574, 575<br />

survivors 573<br />

withdrawals 572<br />

Likelihood 55±58, 85, 86, 165, 529, 615<br />

function 85, 170<br />

<strong>in</strong>dependent of stopp<strong>in</strong>g rule 615, 622<br />

maximum 86, 162±164, 174, 191, 489, 490,<br />

576<br />

partial 585<br />

pr<strong>in</strong>ciple 615<br />

profile 415<br />

ratio<br />

<strong>in</strong> cont<strong>in</strong>gency tables 525<br />

Subject Index 805<br />

<strong>in</strong> diagnosis 696<br />

<strong>in</strong> discrim<strong>in</strong>ation 467, 479, 480, 696<br />

Limit<strong>in</strong>g dilution assay 730, 734±737<br />

L<strong>in</strong>dley's paradox 172<br />

L<strong>in</strong>e diagram 9, 25<br />

L<strong>in</strong>ear<br />

contrast 223, 372<br />

<strong>in</strong> biological assay 727<br />

<strong>in</strong> two-level factorial 252, 253<br />

discrim<strong>in</strong>ant function 464±467<br />

predictor 486<br />

regression 189±195, 337±356<br />

L<strong>in</strong>earity<br />

transformations for 308<br />

variance ratio test of 315, 316<br />

L<strong>in</strong>earization 415±418<br />

L<strong>in</strong>eweaver±Burk transformation 308, 416,<br />

731<br />

L<strong>in</strong>k function 486<br />

Liver disease 57, 58<br />

LMS method 400±403<br />

Location, measures of 31±33<br />

Logarithm, common and natural 34, 126<br />

Logarithmic<br />

scale 34<br />

transformation 33±36, 43, 44, 308±311, 375,<br />

499, 636, 707<br />

as limit<strong>in</strong>g power 308<br />

for ratios 161<br />

of dose <strong>in</strong> biological assay 718, 719<br />

with zero values 309, 311<br />

Logistic<br />

curve 413<br />

regression 472, 484, 485, 488±496, 508, 521,<br />

523, 524, 587, 681, 728, 730<br />

conditional 496, 681<br />

diagnostic methods 494<br />

transformation 487, 488, 499, 635<br />

and relative risk 488, 674, 680<br />

<strong>in</strong> biological assay 718, 728, 730<br />

<strong>in</strong> comb<strong>in</strong>ation of 2 2 tables 518<br />

l<strong>in</strong>ear model with (see Logistic regression)<br />

Logit (see Logistic transformation)<br />

Logit limits 127, 674<br />

Log-l<strong>in</strong>ear model 499, 561, 657, 687<br />

Log-normal distribution 309±311, 588<br />

Logrank test 576±582, 681, 740<br />

several groups 577<br />

stratification <strong>in</strong> 581<br />

LogXact 496<br />

Longitud<strong>in</strong>al data 347, 419, 430±449<br />

Loss function 173<br />

Lung function (see Respiratory function)<br />

Lymphoma (see Cancer, lymphoma)

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