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Nonparametric Estimation from Incomplete Observations
Abstract
Abstract In lifetesting, medical follow-up, and other fields the observation of the time of occurrence of the event of interest (called a death) may be prevented for some of the items of the sample by the previous occurrence of some other event (called a loss). Losses may be either accidental or controlled, the latter resulting from a decision to terminate certain observations. In either case it is usually assumed in this paper that the lifetime (age at death) is independent of the potential loss time; in practice this assumption deserves careful scrutiny. Despite the resulting incompleteness of the data, it is desired to estimate the proportion P(t) of items in the population whose lifetimes would exceed t (in the absence of such losses), without making any assumption about the form of the function P(t). The observation for each item of a suitable initial event, marking the beginning of its lifetime, is presupposed. For random samples of size N the product-limit (PL) estimate can be defined as follows: L...
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- Bailey. W.G.. and Haycocks, H.W, “A synthesis of methods of deriving measures of decrement from observed data.” Journal of the Institute of Actuaries, 73 (1947). 179–212. · DOI
- Bartlelt, M.S.. “On the statistical estimation of mean lifetime,” Philosophical Magazine (Series 7 ), 44 (1953), 249–62. · DOI
- Berkson, J., and Gage, R.P. “Calculation of survival rates for cancer,” Proceedings of the Staff Meetings of the Mayo Clinic. 25 (1950), 270–86.
- Berkson, J, and Gage, R.P., “Survival curve for cancer patients following treatment.” Journal of the American Statistical Association. 47 (1952), 501–15. · DOI
- Berkson. J., “Estimation of the interval rate in actuarial calculations: a critique of the person-years concept.” (Summary) Journal of the American Statistical Association 49 (1954). 363.
- Böhmer, P.E., “Theorie der unabhängigen Wahrscheinlichkeiten,” Rapports. Mémoires et Prooès-verbaux de Septième Congrès International d’Actuaires, Amsterdam. 2 (1912), 327–43.
- Brown, G.W. and Flood, M.M.. “Tumbler mortality,” Journal of the American Statistical Association. 42 (1947). 562–74. · DOI
- Davis, D.J., “An analysis of some failure data,” Journal of the American Statistical Association 47 (1952), 113–150. · DOI
- Epstein, Benjamin, and Sobel, Milton, “Lifetesting,” Journal of the American Statistical Association. 48 (1953). 486–502. · DOI
- Epstein, Benjamin, and Sobel, Milton, “Some theorems relevant to lifetesting from an exponential distribution,” Annals of Mathematical Statistics. 25 (1954), 373–81. · DOI · Paper page
- Fix. Evelyn, and Neyman, J., “A simple stochastic model of recovery, relapse, death and loss of patients.” Human Biology, 23 (1951), 205–41.
- Goodman, L.A., “Methods of measuring useful life of equipment under operational conditions.” Journal of the American Statistical Association. 48 (1953) 503–30. · DOI
- Greville, T.N.E., “Mortality tables analyzed by cause of death.” The Record, American Institute of Actuaries, 37 (1948). 283–94.
- Hald, A., “Maximum likelihood estimation of the parameters of a normal distri¬bution which is truncated at a known point.” Skandinavisk Aktuarietidskrift, 32 (1949) 119–34.
- Harris, T.E., Meier, P.. and Tukey, J.W., “Timing of the distribution of events between observations,” Human Biology, 22 (1950), 249–70.
- Irwin. J.O., “The standard error of an estimate of expcctational life.” Journal of Hygiene, 47 (1949), 188–9. · DOI
- Littell, A.S., “Estimation of the T-year survival rate from follow-up studies over a limited period of time,” Human Biology, 24 (1952), 87–116.
- Merrell, Margaret, “Time-specific life tables contrasted with observed survivorship,” Biometrics. 3 (1947), 129 - 36. · DOI
- Sartwell, P.E., and Merrell. M. “Influence of the dynamic character of chronic disease on the interpretation of morbidity rates,” American Journal of Public Health, 42 (1952), 579–84. · DOI
- Savage. I.R., “Bibliography of nonparametric statistics and related topics.” Journal of the American Statistical Association, 48 (1953), 844–906. · DOI
- Seal, H.L., “The estimation of mortality and other decremental probabilities,” Skamlinavisk Aktuarletidskrift, 37 (1954), 137–62.
- Stephan. F.F., “The expected value and variance of the reciprocal and other negative powers of a positive Bernoullian variate,” Annals of Mathematical Statistics, 16 (1945), 50–61. · DOI
- Wolfowitz. J., “Additive partition functions and a class of statistical hypotheses.” Annals of Mathematical Statistics, 13 (1942), 247–79. · DOI
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Penadés (2007) · doi:10.1016/j.eurpsy.2007.03.004 · Cited by 59
Bishop, M. W., Chang, Y., Krailo, M. D., Meyers, P. A., Provisor, A. J., Schwartz, C. L., Marina, N. M., Teot, L. A., Gebhardt, M. C., Gorlick, R., et al. (2016) · Pediatric Blood & Cancer · doi:10.1002/pbc.26034 · Cited by 52
“EFS-DS as a function of time was estimated using Kaplan–Meier methodology.[13] The main effects model relating risk for EFS-DS event included histologic response and study of enrollment, and was implemented using Cox proportional hazard modeling.”
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Zorn, G. L., McGiffin, D. C., Young, K. R., Alexander, C. B., Weill, D., & Kirklin, J. K. (2003) · The Journal of Thoracic and Cardiovascular Surgery · doi:10.1067/mtc.2003.72 · Cited by 58
ROMANOWSKI, B., MARINA, R. B., & ROBERTS, J. N. (2003) · Sexually Transmitted Diseases · doi:10.1097/00007435-200303000-00010 · Cited by 56
Sachs, D. P. L. (1995) · Archives of Internal Medicine · doi:10.1001/archinte.1995.00430180077009 · Cited by 56
Osada, T., Nagashima, I., Tsuno, N. H., Kitayama, J., & Nagawa, H. (2000) · Journal of Hepatology · doi:10.1016/s0168-8278(00)80365-7 · Cited by 55
Vinorelbine and Paclitaxel as First-Line Chemotherapy in Metastatic Breast Cancer
Acuña, L. R., Langhi, M., Pérez, J., Acuña, J. R., Machiavelli, M., Lacava, J., Vallejo, C., Romero, A., Fasce, H., Ortiz, E., et al. (1999) · Journal of Clinical Oncology · doi:10.1200/jco.1999.17.1.74 · Cited by 54
Association of Coffee Intake with Survival in Patients With Advanced or Metastatic Colorectal Cancer
Mackintosh, C., Yuan, C., Ou, F.-S., Zhang, S., Niedzwiecki, D., Chang, I.-W., O’Neil, B. H., Mullen, B. C., Lenz, H.-J., Blanke, C. D., et al. (2020) · JAMA Oncology · doi:10.1001/jamaoncol.2020.3938 · Cited by 52
Vazquez, J. A., Sobel, J. D., Peng, G., Steele‐Moore, L., Schuman, P., Holloway, W., Neaton, J. D., & (CPCRA), T. T. B. C. P. F. C. R. I. A. (1999) · Clinical Infectious Diseases · doi:10.1086/514746 · Cited by 51
Impact of nutritional state on lung transplant outcomes
Chamogeorgakis, T., Mason, D. P., Murthy, S. C., Thuita, L., Raymond, D. P., Pettersson, G. B., & Blackstone, E. H. (2013) · The Journal of Heart and Lung Transplantation · doi:10.1016/j.healun.2013.04.005 · Cited by 51
Darnton, S. J., Archer, V. R., Stocken, D. D., Mulholland, P. J., Casson, A. G., & Ferry, D. R. (2003) · Journal of Clinical Oncology · doi:10.1200/jco.2003.01.236 · Cited by 51
Dufour, C., Rondelli, R., Locatelli, F., Miano, M., Di Girolamo, G., Bacigalupo, A., Messina, C., Porta, F., Balduzzi, A., Iorio, A. P., et al. (2001) · British Journal of Haematology · doi:10.1046/j.1365-2141.2001.02572.x · Cited by 50
Carcinogenesis studies of cresols in rats and mice
Sanders, J. M., Bucher, J. R., Peckham, J. C., Kissling, G. E., Hejtmancik, M. R., & Chhabra, R. S. (2009) · Toxicology · doi:10.1016/j.tox.2008.12.005 · Cited by 49
Sharma, M. R., Wroblewski, K., Polite, B. N., Knost, J. A., Wallace, J. A., Modi, S., Sleckman, B. G., Taber, D., Vokes, E. E., Stadler, W. M., et al. (2012) · Investigational New Drugs · doi:10.1007/s10637-011-9681-x · Cited by 49
The Prognosis of Liver Cirrhosis in Recent Years in Korea
Kim, Y. S., Um, S. H., Ryu, H. S., Lee, J. B., Lee, J. W., Park, D. K., Kim, Y. S., Jin, Y. T., Chun, H. J., Lee, H. S., et al. (2003) · Journal of Korean Medical Science · doi:10.3346/jkms.2003.18.6.833 · Cited by 49
Van Cutsem, E., Joulain, F., Hoff, P. M., Mitchell, E., Ruff, P., Lakomý, R., Prausová, J., Moiseyenko, V. M., van Hazel, G., Cunningham, D., et al. (2016) · Targeted Oncology · doi:10.1007/s11523-015-0402-9 · Cited by 49
Reproductive Health Outcomes Among Female Flight Attendants: An Exploratory Study
Cone, J. E., Vaughan, L. M., Huete, A., & Samuels, S. J. (1998) · Journal of Occupational & Environmental Medicine · doi:10.1097/00043764-199803000-00002 · Cited by 49
Gradishar, W. J., Vogelzang, N. J., Kilton, L. J., Leibach, S. J., Rademaker, A. W., French, S., & Benson, A. B. (1995) · Investigational New Drugs · doi:10.1007/bf00872868 · Cited by 49
Hainsworth, J. D., Meluch, A. A., Spigel, D. R., Barton, J., Simons, L., Meng, C., Gould, B., & Greco, F. A. (2007) · Clinical Genitourinary Cancer · doi:10.3816/cgc.2007.n.004 · Cited by 49
Coffee intake and coronary heart disease
Klag, M. J., Mead, L. A., Lacroix, A. Z., Wang, N.-Y., Coresh, J., Liang, K.-Y., Pearson, T. A., & Levine, D. M. (1994) · Annals of Epidemiology · doi:10.1016/1047-2797(94)90001-9 · Cited by 47
Cured meat consumption increases risk of readmission in COPD patients
de Batlle, J., Mendez, M., Romieu, I., Balcells, E., Benet, M., Donaire-Gonzalez, D., Ferrer, J. J., Orozco-Levi, M., Antó, J. M., Garcia-Aymerich, J., et al. (2012) · European Respiratory Journal · doi:10.1183/09031936.00116911 · Cited by 47
Ceschel, S., Casotto, V., Valsecchi, M. G., Tamaro, P., Jankovic, M., Hanau, G., Fossati, F., Pillon, M., Rondelli, R., Sandri, A., et al. (2006) · Pediatric Blood & Cancer · doi:10.1002/pbc.20726 · Cited by 44
Extremes of age decrease survival in adults after lung transplant
Lehr, C. J., Blackstone, E. H., McCurry, K. R., Thuita, L., Tsuang, W. M., & Valapour, M. (2020) · Chest · doi:10.1016/j.chest.2019.06.042 · Cited by 45
Grommon, E., Davidson II, W. S., & Bynum, T. S. (2013) · Journal of Offender Rehabilitation · doi:10.1080/10509674.2013.782775 · Cited by 43
Legge, F., Chiantera, V., Macchia, G., Fagotti, A., Fanfani, F., Ercoli, A., Gallotta, V., Morganti, A. G., Valentini, V., Scambia, G., et al. (2015) · Gynecologic Oncology · doi:10.1016/j.ygyno.2015.04.035 · Cited by 43
Enatsu, S., Iwasaki, A., Shirakusa, T., Hamasaki, M., Nabeshima, K., Iwasaki, H., Kuroki, M., & Kuroki, M. (2006) · European Journal of Cardio-Thoracic Surgery · doi:10.1016/j.ejcts.2006.03.027 · Cited by 42
Lee, D.-J., Pajak, T. F., Stetz, J., Order, S. E., Weissberg, J. B., & Fischer, J. J. (1989) · International Journal of Radiation Oncology*Biology*Physics · doi:10.1016/0360-3016(89)90343-x · Cited by 41
Unconstraining methods in revenue management systems: research overview and prospects
Guo, P., Xiao, B., & Li, J. (2012) · Advances in Operations Research · doi:10.1155/2012/270910 · Cited by 40
RAG-Mediated V(D)J Recombination Is Not Essential for Tumorigenesis in Atm-Deficient Mice
Petiniot, L. K., Weaver, Z., Vacchio, M., Shen, R., Wangsa, D., Barlow, C., Eckhaus, M., Steinberg, S. M., Wynshaw-Boris, A., Ried, T., et al. (2002) · Molecular and Cellular Biology · doi:10.1128/mcb.22.9.3174-3177.2002 · Cited by 40
Medication Nonadherence After Lung Transplantation in Adult Recipients
Castleberry, A. W., Bishawi, M., Worni, M., Erhunmwunsee, L., Speicher, P. J., Osho, A. A., Snyder, L. D., & Hartwig, M. G. (2017) · The Annals of Thoracic Surgery · doi:10.1016/j.athoracsur.2016.06.067 · Cited by 39
Vincenzi, B., Santini, D., Russo, A., Gavasci, M., Battistoni, F., Dicuonzo, G., Rocci, L., Rosaria, V. M., Gebbia, N., & Tonini, G. (2007) · Pharmacogenomics · doi:10.2217/14622416.8.4.319 · Cited by 38
Life expectancy biases in clinical decision modeling
Kuntz, K. M., & Weinstein, M. C. (1995) · Medical Decision Making · doi:10.1177/0272989x9501500209 · Cited by 38
Lee, C. H., Alpert, B. O., Sankaranarayanan, P., & Alter, O. (2012) · PLoS ONE · doi:10.1371/journal.pone.0030098 · Cited by 36
Stricker, T. P., Morales La Madrid, A., Chlenski, A., Guerrero, L., Salwen, H. R., Gosiengfiao, Y., Perlman, E. J., Furman, W., Bahrami, A., Shohet, J. M., et al. (2014) · Molecular Oncology · doi:10.1016/j.molonc.2014.01.010 · Cited by 36
Raposa, E. B., Ben‐Eliyahu, A., Olsho, L. E. W., & Rhodes, J. (2019) · Journal of Community Psychology · doi:10.1002/jcop.22127 · Cited by 33
Telomere fusion to chromosome breaks reduces oncogenic translocations and tumour formation
Qi, L., Strong, M. A., Karim, B. O., Huso, D. L., & Greider, C. W. (2005) · Nature Cell Biology · doi:10.1038/ncb1276 · Cited by 32
Cascone, T., Sepesi, B., Lin, H. Y., Kalhor, N., Parra, E. R., Jiang, M., Godoy, M. C. B., Zhang, J., Fossella, F. V., Tsao, A. S., et al. (2020) · Clinical Cancer Research · doi:10.1158/1078-0432.ccr-19-4180 · Cited by 31
A link between psychosocial factors and blood pressure trend in women
Timio, M., Saronio, P., Verdura, C., Schiaroli, M., Timio, F., & Monarca, C. (2001) · Physiology & Behavior · doi:10.1016/s0031-9384(01)00489-9 · Cited by 30
Sestak, I., Smith, S. G., Howell, A., Forbes, J. F., & Cuzick, J. (2018) · Annals of Oncology · doi:10.1093/annonc/mdx713 · Cited by 27
Single-center long-term analysis of combined liver-lung transplant outcomes
Freischlag, K. W., Messina, J., Ezekian, B., Mulvihill, M. S., Barbas, A., Berg, C., Sudan, D., Reynolds, J., Hartwig, M., & Knechtle, S. (2018) · Transplantation Direct · doi:10.1097/txd.0000000000000785 · Cited by 26
Mortality among involuntarily admitted psychiatric patients: a survival analysis
Crisanti, A. S., & Love, E. J. (1999) · Social Psychiatry and Psychiatric Epidemiology · doi:10.1007/s001270050185 · Cited by 26
Pelzer, U., Blanc, J.-F., Melisi, D., Cubillo, A., Von Hoff, D. D., Wang-Gillam, A., Chen, L.-T., Siveke, J. T., Wan, Y., Solem, C. T., et al. (2017) · British Journal of Cancer · doi:10.1038/bjc.2017.67 · Cited by 26
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Leon, A. C., & Davis, L. L. (2009) · Journal of Traumatic Stress · doi:10.1002/jts.20466 · Cited by 26
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Initiative, F. T. A. D. N., Gross, A. L., Manly, J. J., Pa, J., Johnson, J. K., Park, L. Q., Mitchell, M. B., Melrose, R. J., Inouye, S. K., & McLaren, D. G. (2012) · Brain Imaging and Behavior · doi:10.1007/s11682-012-9180-5 · Cited by 25
Does the Family and Medical Leave Act (FMLA) Increase Fertility Behavior?
Cannonier, C. (2014) · Journal of Labor Research · doi:10.1007/s12122-014-9181-9 · Cited by 23
Case-control studies in neurosurgery: A review
Nesvick, C. L., Thompson, C. J., Boop, F. A., & Klimo, P. (2014) · Journal of Neurosurgery · doi:10.3171/2014.5.jns132329 · Cited by 22
Suh, J. K., Koh, K., Min, S. Y., Kim, Y. S., Kim, H., Im, H. J., Namgoong, J., Kim, D. Y., Ahn, S. D., Lee, J. J., et al. (2020) · Pediatric Transplantation · doi:10.1111/petr.13658 · Cited by 22
Chihara, D., Masarova, L., Newberry, K. J., Maeng, H., Ravandi, F., Garcia-Manero, G., Ferrajoli, A., Cortes, J., Kantarjian, H., & Verstovsek, S. (2016) · Leukemia Research · doi:10.1016/j.leukres.2016.06.007 · Cited by 21
Schilsky, R. L., Faraggi, D., Korzun, A., Vogelzang, N., Ellerton, J., Wood, W., & Henderson, I. C. (1991) · Investigational New Drugs · doi:10.1007/bf00176982 · Cited by 21
Gupta, A., Downey, M., Shanley, R., Jennissen, C., Miller, W. P., Lund, T. C., Orchard, P. J., & Smith, A. R. (2020) · Biology of Blood and Marrow Transplantation · doi:10.1016/j.bbmt.2019.11.014 · Cited by 21
Rodrigues, A. S., Calsavara, V. F., Silva, F. I. B., Alves, F. A., & Vivas, A. P. M. (2018) · Applied Cancer Research · doi:10.1186/s41241-018-0067-7 · Cited by 21
Tendulkar, R. D., Hunter, G. K., Reddy, C. A., Stephans, K. L., Ciezki, J. P., Abdel-Wahab, M., Stephenson, A. J., Klein, E. A., Mahadevan, A., & Kupelian, P. A. (2013) · International Journal of Radiation Oncology*Biology*Physics · doi:10.1016/j.ijrobp.2013.05.044 · Cited by 20
Lovastatin fails to improve motor performance and survival in methyl-CpG-binding protein2-null mice
Villani, C., Sacchetti, G., Bagnati, R., Passoni, A., Fusco, F., Carli, M., & Invernizzi, R. W. (2016) · eLife · doi:10.7554/elife.22409 · Cited by 20
Peselow, E. D., Tobia, G., Karamians, R., Pizano, D., & IsHak, W. W. (2015) · Psychiatry Research · doi:10.1016/j.psychres.2014.11.022 · Cited by 19
Development of Congestive Heart Failure in Japanese Patients With Atrial Fibrillation
Fukuda, T., Yamashita, T., Sagara, K., Kato, T., Sawada, H., & Aizawa, T. (2007) · Circulation Journal · doi:10.1253/circj.71.308 · Cited by 17
Wheler, J., Falchook, G., Tsimberidou, A. M., Hong, D., Naing, A., Piha-Paul, S., Chen, S. S., Heymach, J., Fu, S., Stephen, B., et al. (2013) · Oncotarget · doi:10.18632/oncotarget.1028 · Cited by 17
Taylor, S. A., Crowley, J., Townsend, J., Vogel, F. S., Eyre, H., Braun, J. J., & Goodwin, J. W. (1993) · Journal of Neuro-Oncology · doi:10.1007/bf01053939 · Cited by 15
Turner, A. N., Feldblum, P. J., & Hoke, T. H. (2010) · Sexually Transmitted Diseases · doi:10.1097/olq.0b013e3181d70a03 · Cited by 14
A reanalysis of the stanton et al. pleural sarcoma data
Oehlert, G. W. (1991) · Environmental Research · doi:10.1016/s0013-9351(05)80101-x · Cited by 13
SGK1.1 reduces Kainic acid-induced seizure severity and leads to rapid termination of seizures
Armas-Capote, N., Maglio, L. E., Pérez-Atencio, L., Martin-Batista, E., Reboreda, A., Barios, J. A., Hernandez, G., Alvarez de la Rosa, D., Lamas, J. A., Barrio, L. C., et al. (2020) · Cerebral Cortex · doi:10.1093/cercor/bhz302 · Cited by 12
Amin, A., Halabi, S., Gelmann, E. P., Stadler, W., Vogelzang, N., & Small, E. (2004) · Urologic Oncology: Seminars and Original Investigations · doi:10.1016/j.urolonc.2004.05.002 · Cited by 9
Fusar-Poli, P., Oliver, D., Spada, G., Estrade, A., & McGuire, P. (2021) · Schizophrenia Research · doi:10.1016/j.schres.2020.11.031 · Cited by 6
Photo‐co‐carcinogenesis of Topically Applied Retinyl Palmitate in SKH‐1 Hairless Mice
Boudreau, M. D., Beland, F. A., Felton, R. P., Fu, P. P., Howard, P. C., Mellick, P. W., Thorn, B. T., & Olson, G. R. (2017) · Photochemistry and Photobiology · doi:10.1111/php.12730 · Cited by 4
O'Leary, D., Hickey, T., Lagendijk, M., & Webb, M. (2010) · Journal of Affective Disorders · doi:10.1016/j.jad.2010.02.107 · Cited by 4
Tumor stratification by a novel graph-regularized bi-clique finding algorithm
Ahmadi Adl, A., & Qian, X. (2015) · Computational Biology and Chemistry · doi:10.1016/j.compbiolchem.2015.02.010 · Cited by 3
Coffee Intake and Risk of Hypertension: The Johns Hopkins Precursors Study
Klag, M. J., Wang, N.-Y., Meoni, L. A., Brancati, F. L., Cooper, L. A., Liang, K.-Y., Young, J. H., & Ford, D. E. (2002) · Archives of Internal Medicine · doi:10.1001/archinte.162.6.657 · Cited by 4
(2000) · doi:10.1002/1097-0142(20000715)89:2
(1997) · doi:10.1002/(sici)1097-0142(19970501)79:9
Chang, A. Y., Kim, K., Boucher, H., Bonomi, P., Stewart, J. A., Karp, D. D., & Blum, R. H. (1998) · Cancer · doi:10.1002/(sici)1097-0142(19980115)82:2<301::aid-cncr8>3.0.co;2-t
Metadata
- Authors
- Kaplan, E. L., & Meier, P.
- Venue
- Springer Series in Statistics
- Publisher
- Springer New York
- Published
- 1992
- Pages
- 319-337
- ISSN
- 0172-7397 (ISSN-L)
- OpenAlex
- W1979300931
- Cited by
- 45,181
- References
- 0
- FWCI
- 732.91
- Type
- book chapter
- Language
- en
- Open access
- closed
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