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Postoperative cure in Iranian patients with gastric cancer: estimating the crude conditional probability in a relative survival setting in the presence of competing risks

Fatemeh Paknazar

Fatemeh Paknazar

Nursing Care Research Center, Semnan University of Medical SciencesSemnan, Iran
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Paknazar, Fatemeh
, 
Mahmood Mahmoudi

Mahmood Mahmoudi

Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical SciencesTehran, Iran
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Mahmoudi, Mahmood
, 
Kazem Mohammad

Kazem Mohammad

Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical SciencesTehran, Iran
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Mohammad, Kazem
, 
Hojjat Zeraati

Hojjat Zeraati

Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical SciencesTehran, Iran
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Zeraati, Hojjat
, 
Mohammad Ali Mansournia

Mohammad Ali Mansournia

Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical SciencesTehran, Iran
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Mansournia, Mohammad Ali
 e 
Mehdi Yaseri

Mehdi Yaseri

Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical SciencesTehran, Iran
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Yaseri, Mehdi
  
30 dic 2017
Postoperative cure in Iranian patients with gastric cancer: estimating the crude conditional probability in a relative survival setting in the presence of competing risks's Cover Image
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Categoria dell'articolo: Brief communication
Pubblicato online: 30 dic 2017
Pagine: 461 - 467
DOI: https://doi.org/10.1515/abm-2018-0023
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© 2017 Fatemeh Paknazar et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Figure 1

Graph of predicted 1-, 3-, and 5-year vital status (left) and crude ratios of men who will die from causes other than gastric cancer (right) by age at diagnosis (years)
Graph of predicted 1-, 3-, and 5-year vital status (left) and crude ratios of men who will die from causes other than gastric cancer (right) by age at diagnosis (years)

Figure 2. A

Net probability. B. Crude probability. C. Crude probability further partitioned by predicted prognosis. D. Conditional probabilities of death from competing causes
Net probability. B. Crude probability. C. Crude probability further partitioned by predicted prognosis. D. Conditional probabilities of death from competing causes

Statistical crude ratios of patients who died from causes other than gastric cancer estimated using the flexible parametric cure model in the presence of competing risks by stage and age at diagnosis and sex

Stage atAge at diagnosisRatio (95% CI)
diagnosis(years)MenWomen
I and II500.69 (0.46, 0.84)0.63 (0.28, 0.80)
600.48 (0.31, 0.63)0.45 (0.24, 0.64)
700.40 (0.18, 0.61)0.25 (0.08, 0.45)
800.08 (0.02, 0.26)0.05 (0.01, 0.27)
III500.49 (0.25, 0.69)0.20 (0.01, 0.54)
600.45 (0.24, 0.64)0.17 (0.08, 0.29)
700.28 (0.14, 0.43)0.11 (0.04, 0.25)
800.07 (0.01, 0.17)0.06 (0.01, 0.25)
IV500.32 (0.19, 0.45)0.27 (0.13, 0.42)
600.22 (0.14, 0.31)0.12 (0.03, 0.28)
700.14 (0.08, 0.22)0.10 (0.02, 0.19)
800.04 (0.01, 0.14)0.03 (0.01, 0.16)

Characteristics of the patients with gastric cancer (1993–2000)

CharacteristicsNo. (%)No. of deaths (%)†Percentage of deaths
Total32623572.1
Stage at diagnosis
I22 (6.7)13 (5.5)59.1
II60 (18.4)35 (14.9)58.3
III53 (16.3)37 (15.8)69.8
IV191 (58.6)150 (63.8)78.5
Age at diagnosis (years)
<6187 (26.7)52 (22.1)59.7
61–70122 (37.4)83 (35.3)68.0
>70117 (35.9)100 (42.6)85.5
Year of diagnosis
Before 199676 (23.3)55 (23.4)72.4
1996–1997109 (33.4)81 (34.5)74.3
After 1997141 (43.3)99 (42.1)70.2
Sex
Male224 (68.7)155 (65.9)69.2
Female102 (31.3)80 (34.1)78.4
Lingua:
Inglese
Frequenza di pubblicazione:
6 volte all'anno
Argomenti della rivista:
Medicina, Professioni assisitive, infermieristica, Scienze medicali di base, Scienze medicali di base, altro, Medicina clinica, Medicina clinica, altro
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