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LUNG TRANSPLANTATION Pediatric Recipients ISHLT 2010

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Presentation on theme: "LUNG TRANSPLANTATION Pediatric Recipients ISHLT 2010"— Presentation transcript:

1 LUNG TRANSPLANTATION Pediatric Recipients ISHLT 2010
Analysis excludes living donor transplants unless specifically stated otherwise. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

2 RECIPIENT AGE DISTRIBUTION FOR PEDIATRIC LUNG RECIPIENTS - NUMBER (Transplants: January June 2009) 2010 ISHLT J Heart Lung Transplant Oct; 29 (10): Analysis includes living donor transplants

3 RECIPIENT AGE DISTRIBUTION FOR PEDIATRIC LUNG RECIPIENTS - PERCENTAGE (Transplants: January June 2009) 2010 ISHLT J Heart Lung Transplant Oct; 29 (10): Analysis includes living donor transplants

4 DONOR TYPE DISTRIBUTION BY YEAR OF TRANSPLANT FOR PEDIATRIC LUNG RECIPIENTS (Transplants: 1986-2008)
NOTE: This figure includes only the lung transplants that are reported to the ISHLT Transplant Registry. As such, the presented data may not mirror the changes in the number of lung transplants performed worldwide. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10): Analysis includes living donor transplants

5 DONOR TYPE DISTRIBUTION BY RECIPIENT AGE GROUP WITHIN ERA FOR PEDIATRIC LUNG RECIPIENTS (Transplants: January June 2009) 2010 ISHLT J Heart Lung Transplant Oct; 29 (10): Analysis includes living donor transplants

6 AGE DISTRIBUTION FOR DONORS OF PEDIATRIC LUNG RECIPIENTS (Transplants: January 1986 - June 2009)
2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

7 AGE DISTRIBUTION OF PEDIATRIC LUNG RECIPIENTS By Year of Transplant
NOTE: This figure includes only the pediatric lung transplants that are reported to the ISHLT Transplant Registry. Therefore, these numbers should not be interpreted as the rate of change in pediatric lung procedures performed worldwide. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10): Analysis includes living donor transplants

8 NUMBER OF CENTERS REPORTING PEDIATRIC LUNG TRANSPLANTS
2010 ISHLT J Heart Lung Transplant Oct; 29 (10): Analysis includes living donor transplants

9 NUMBER OF CENTERS REPORTING PEDIATRIC LUNG TRANSPLANTS BY CENTER VOLUME
2010 ISHLT J Heart Lung Transplant Oct; 29 (10): Analysis includes living donor transplants

10 NUMBER OF PEDIATRIC LUNG TRANSPLANTS BY CENTER VOLUME
2010 ISHLT J Heart Lung Transplant Oct; 29 (10): Analysis includes living donor transplants

11 PEDIATRIC LUNG TRANSPLANTATION: Indications (Transplants: January 1990 – June 2009)
DIAGNOSIS AGE: < 1 Year AGE: 1-5 Years AGE: 6-11 Years AGE: Years Cystic Fibrosis 2 2.4% 5 5.1% 134 55.1% 617 70.2% Idiopathic Pulmonary Arterial Hypertension 12 14.5% 24 24.2% 26 10.7% 66 7.5% Re-Transplant: Obliterative Bronchiolitis 6 6.1% 9 3.7% 30 3.4% Congenital Heart Disease 0.8% 11 1.3% Idiopathic Pulmonary Fibrosis 10 12.0% 18 18.2% 4.1% 33 3.8% Obliterative Bronchiolitis (Not Re-TX) 9.1% 4.9% 37 4.2% Re-Transplant: Not OB 1 1.0% 2.5% 2.7% Interstitial Pneumonitis 1.2% 2.0% Pulmonary Vascular Disease 8 9.6% 3 Eisenmenger’s Syndrome 2.1% 0.7% Pulmonary Fibrosis, Other 7 2.9% 14 1.6% Surfactant Protein B Deficiency 16 19.3% 0.4% 0.1% COPD/Emphysema 6.0% Bronchopulmonary Dysplasia Bronchiectasis 1.1% Other 13.3% 8.1% 13 5.3% 23 2.6% 2010 ISHLT J Heart Lung Transplant Oct; 29 (10): Analysis includes living donor transplants

12 DIAGNOSIS IN PEDIATRIC LUNG RECIPIENTS BY YEAR OF TRANSPLANT Age: 12-17 Years
2010 ISHLT J Heart Lung Transplant Oct; 29 (10): Analysis includes living donor transplants

13 PEDIATRIC LUNG TRANSPLANTS: AGE DISTRIBUTION BY LOCATION Transplants between January 2000 and June 2009 2010 ISHLT J Heart Lung Transplant Oct; 29 (10): Analysis includes living donor transplants

14 PEDIATRIC LUNG TRANSPLANTS: DIAGNOSIS DISTRIBUTION BY LOCATION Transplants between January 2000 and June 2009 NOTE: Unknown diagnoses were excluded from this tabulation. Total number of transplants reported: Europe = 237 North America = 498 Other = 41 2010 ISHLT J Heart Lung Transplant Oct; 29 (10): Analysis includes living donor transplants

15 PEDIATRIC LUNG TRANSPLANTS: DONOR AGE DISTRIBUTION BY LOCATION Transplants between January 2000 and June 2009 NOTE: Transplants with unknown donor age and living donor transplants were excluded from this tabulation. Total number of transplants reported: Europe = 237 North America = 498 Other = 41 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

16 LUNG TRANSPLANTATION Kaplan-Meier Survival by Age Group (Transplants: January 1990 - June 2008)
Survival was calculated using the Kaplan-Meier method, which incorporates information from all transplants for whom any follow-up has been provided. Since many patients are still alive and some patients have been lost to follow-up, the survival rates are estimates rather than exact rates because the time of death is not known for all patients. The half-life is the estimated time point at which 50% of all of the recipients have died. Survival rates were compared using the log-rank test statistic. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

17 PEDIATRIC LUNG TRANSPLANTATION Kaplan-Meier Survival by Procedure Type (Transplants: January June 2008) Survival was calculated using the Kaplan-Meier method, which incorporates information from all transplants for whom any follow-up has been provided. Since many patients are still alive and some patients have been lost to follow-up, the survival rates are estimates rather than exact rates because the time of death is not known for all patients. The half-life is the estimated time point at which 50% of all of the recipients have died. Survival rates were compared using the log-rank test statistic. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

18 PEDIATRIC LUNG TRANSPLANTATION Kaplan-Meier Survival for Congenital Diagnoses (Transplants: January 1990 – June 2008) Survival was calculated using the Kaplan-Meier method, which incorporates information from all transplants for whom any follow-up has been provided. Since many patients are still alive and some patients have been lost to follow-up, the survival rates are estimates rather than exact rates because the time of death is not known for all patients. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

19 PEDIATRIC LUNG TRANSPLANTATION Kaplan-Meier Survival by Age Group (Transplants: January June 2008) Survival was calculated using the Kaplan-Meier method, which incorporates information from all transplants for whom any follow-up has been provided. Since many patients are still alive and some patients have been lost to follow-up, the survival rates are estimates rather than exact rates because the time of death is not known for all patients. The half-life is the estimated time point at which 50% of all of the recipients have died. Survival rates were compared using the log-rank test statistic. Note that there were very few transplants performed in the earlier part of the era which is the only group having the possibility of surviving to 12 years. The transplant numbers in this earlier era were higher in the older age group but there is a higher mortality rate for the older age group, so lower percentage of patients were alive with follow-up at 12 years in the year age group than for the 1-11 age group. This resulted in the ending numbers being quite similar for different age groups despite differences in the starting numbers. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

20 PEDIATRIC LUNG TRANSPLANTATION Conditional Kaplan-Meier Survival by Age Group (Transplants: January June 2008) Survival was calculated using the Kaplan-Meier method, which incorporates information from all transplants for whom any follow-up has been provided. Since many patients are still alive and some patients have been lost to follow-up, the survival rates are estimates rather than exact rates because the time of death is not known for all patients. This figure shows survival conditional on survival to 1 year. Therefore, only patients surviving to at least 1 year were included in the calculation. The conditional half-life is the estimated time point at which 50% of the recipients who survive to at least 1 year have died. Because the decline in survival is greatest during the first year following transplantation, the conditional survival provides a more realistic expectation of survival time for recipients who survive the early post-transplant period. Note that the comparisons of conditional survival for 1-11 vs is borderline significant. Though 0.05 is typically used as the cutoff for “significant”, a p-value between 0.05 and 0.10 is often termed “borderline significant”. This indicates that there is still an association, though just not quite as strong as one with p < 0.05. With only small number of transplants available for analysis in the tail, the p-value may be affected by the outcomes of just a few transplants. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

21 PEDIATRIC LUNG TRANSPLANTATION Kaplan-Meier Survival by Era (Transplants: January 1988 - June 2008)
Survival was calculated using the Kaplan-Meier method, which incorporates information from all transplants for whom any follow-up has been provided. Since many patients are still alive and some patients have been lost to follow-up, the survival rates are estimates rather than exact rates because the time of death is not known for all patients. The half-life is the estimated time point at which 50% of all of the recipients have died. The conditional half-life is the estimated time point at which 5% of the recipients who survive to at least 1 year have died. Because the decline in survival is greatest during the first year following transplantation, the conditional survival provides a more realistic expectation of survival time for recipients who survive the early post-transplant period. Survival rates were compared using the log-rank test statistic. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

22 PEDIATRIC LUNG TRANSPLANTATION Kaplan-Meier Survival by Donor Type for Recipients Age Years (Transplants: January June 2008) Survival was calculated using the Kaplan-Meier method, which incorporates information from all transplants for whom any follow-up has been provided. Since many patients are still alive and some patients have been lost to follow-up, the survival rates are estimates rather than exact rates because the time of death is not known for all patients. The half-life is the estimated time point at which 50% of all of the recipients have died. Survival rates were compared using the log-rank test statistic. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

23 PEDIATRIC LUNG RE-TRANSPLANTS Between January 1994 and June 2009
2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

24 PEDIATRIC LUNG RETRANSPLANTS Survival for Transplants Performed Between January 1994 and June 2008
2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

25 PEDIATRIC LUNG RECIPIENTS Cross-Sectional Analysis Functional Status of Surviving Recipients (Follow-ups: April 1994-June 2009) This figure shows the functional status reported on the 1-year, 3-year, 5-year and 7-year annual follow-ups. Because all follow-ups between April 1994 and June 2009 were included, the bars do not include the same patients. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

26 PEDIATRIC LUNG RECIPIENTS Longitudinal Analysis Functional Status of Surviving Recipients For the Same Patients (Follow-ups: April 1994-June 2009) This figure shows the functional status reported on the 1-year, 3-year and 5-year annual follow-ups for the same patients. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

27 PEDIATRIC LUNG RECIPIENTS Functional Status of Surviving Recipients US Recipients Only (Follow-ups: March June 2009) From March 2005 functional status in US is collected using Karnofsky score for adult recipients and Lansky score for pediatric recipients. This figure shows the functional status reported on the 1-year, 2-year and 3-year annual follow-ups. Because all follow-ups between March 2005 and June 2009 were included, the bars do not include the same patients. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

28 PEDIATRIC LUNG RECIPIENTS Rehospitalization Post-transplant of Surviving Recipients (Follow-ups: April June 2009) This figure shows the hospitalizations reported on the 1-year, 3-year, 5-year and 7-year annual follow-ups, representing the hospitalizations between discharge and 1 year, between the 2-year and 3-year follow-up, between the 4-year and 5-year follow-up, and between the 6-year and 7-year follow-up, respectively. Because all follow-ups between April 1994 and June 2009 were included, the bars do not include the same patients. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

29 PEDIATRIC LUNG RECIPIENTS Rehospitalization Post-transplant of Surviving Recipients (Follow-ups: April June 2009) This figure shows the hospitalizations reported between discharge and 1 year, between the 1-year and 3-year follow-up, between the 3-year and 5-year follow-up, and between the 5-year and 7-year follow-up, respectively. Because all follow-ups between April 1994 and June 2009 were included, the bars do not include the same patients. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

30 PEDIATRIC LUNG RECIPIENTS Induction Immunosuppression For transplants between January 2001 and June 2009 NOTE: Analysis is limited to the patients who were alive at the time of discharge 2010 ISHLT J Heart Lung Transplant Oct; 29 (10): Analysis is limited to patients who were alive at the time of the follow-up

31 PEDIATRIC LUNG RECIPIENTS Induction Immunosuppression (Transplants: January 2001 - June 2009)
NOTE: Analysis is limited to the patients who were alive at the time of discharge 2010 ISHLT J Heart Lung Transplant Oct; 29 (10): Analysis is limited to patients who were alive at the time of the follow-up

32 PEDIATRIC LUNG TRANSPLANTATION Kaplan-Meier Survival Stratified by Induction Use (Transplants: January June 2008) Survival was calculated using the Kaplan-Meier method, which incorporates information from all transplants for whom any follow-up has been provided. Since many patients are still alive and some patients have been lost to follow-up, the survival rates are estimates rather than exact rates because the time of death is not know for all patients. Survival rates were compared using the log-rank test statistic. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

33 PEDIATRIC LUNG RECIPIENTS Maintenance Immunosuppression at Time of Follow-up (Follow-ups: January 2001 – June 2009) This figure shows the maintenance immunosuppression reported as being provided at the time of the 1-year and 5-year annual follow-up forms. To provide a snapshot of current practice, only follow-ups occurring between January 2001 and June 2009 were included. Therefore, this figure does not represent changes in practice between the 1-year follow-up and 5-year follow-up on a cohort of patients. The patients in the 1-year tabulation are not the same patients as in the 5-year tabulation. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10): NOTE: Different patients are analyzed in Year 1 and Year 5 Analysis is limited to patients who were alive at the time of the follow-up

34 PEDIATRIC LUNG RECIPIENTS Maintenance Immunosuppression at Time of Follow-up (Follow-ups: January – June 2009) This figure shows the maintenance immunosuppression reported as being provided at the time of the 1-year and 5-year annual follow-up forms. To provide a snapshot of current practice, only follow-ups occurring between January 2001 and June 2009 were included. Therefore, this figure does not represent changes in practice between the 1-year follow-up and 5-year follow-up on a cohort of patients. The patients in the 1-year tabulation are not the same patients as in the 5-year tabulation. 1 Year Follow-up (N = 307) 5 Year Follow-up (N = 131) NOTE: Different patients are analyzed in Year 1 and Year 5 NOTE: 5% of patients were on both calcineurin inhibitors at different point during the year; these patients are not counted in either group. And 1% (1 patient) was on neither drugs during the year. In the 5-year tabulations, 15% were reported to be on both drugs during the year and 1% (1 patient) was reported to be on neither drugs. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10): Analysis is limited to patients who were alive at the time of the follow-up

35 PEDIATRIC LUNG RECIPIENTS Maintenance Immunosuppression Drug Combinations at Time of Follow-up Report (Follow-ups: January – June 2009) This figure shows the maintenance immunosuppression reported as being provided at the time of the 1-year and 5-year annual follow-up forms. To provide a snapshot of current practice, only follow-ups occurring between January 2001 and June 2009 were included. Therefore, this figure does not represent changes in practice between the 1-year follow-up and 5-year follow-up on a cohort of patients. The patients in the 1-year tabulation are not the same patients as in the 5-year tabulation. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10): NOTE: Different patients are analyzed in Year 1 and Year 5 Analysis is limited to patients who were alive at the time of the follow-up

36 POST-LUNG TRANSPLANT MORBIDITY FOR PEDIATRICS Cumulative Prevalence in Survivors within 1 Year Post-Transplant (Follow-ups: April June 2009) This table shows the percentage of patients experiencing various morbidities as reported on the 1-year annual follow-up form. The percentages are based on patients with known responses. Because the outcomes are reported to be unknown at different rates the number with known responses for each outcome are also provided. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

37 POST-LUNG TRANSPLANT MORBIDITY FOR PEDIATRICS Cumulative Prevalence in Survivors within 5 Years Post-Transplant (Follow-ups: April June 2009) This table shows the percentage of patients experiencing various morbidities as reported within 5 years following transplantation. The percentages are based on patients with known responses. To reduce bias, only patients with responses reported on every follow-up through the 5-year annual follow-up were included. Because the outcomes are reported to be unknown at different rates the number with known responses for each outcome are also provided. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

38 POST-LUNG TRANSPLANT MORBIDITY FOR PEDIATRICS Cumulative Prevalence in Survivors within 7 Years Post-Transplant (Follow-ups: April June 2009) This table shows the percentage of patients experiencing various morbidities as reported within 7 years following transplantation. The percentages are based on patients with known responses. To reduce bias, only patients with responses reported on every follow-up through the 7-year annual follow-up were included. Because the outcomes are reported to be unknown at different rates the number with known responses for each outcome are also provided. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

39 Freedom from Bronchiolitis Obliterans Syndrome For Pediatric Lung Recipients (Follow-ups: April June 2009) Freedom from bronchiolitis obliterans rates were computed using the Kaplan-Meier method. The development of bronchiolitis obliterans is reported on annual follow-ups; a date of diagnosis is not provided. For this figure the date of follow-up was used as the date of occurrence. Patients were included in the analysis until an unknown response for bronchiolitis obliterans was reported. Therefore, the rates seen here may differ from those reported in the cumulative prevalence slide which is based on only those patients with known responses for bronchiolitis obliterans at all follow-up time points. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

40 Freedom from Bronchiolitis Obliterans Syndrome For Pediatric Lung Recipients by Induction Use (Follow-ups: April June 2009) Freedom from bronchiolitis obliterans rates were computed using the Kaplan-Meier method. The development of bronchiolitis obliterans is reported on annual follow-ups; a date of diagnosis is not provided. For this figure the date of follow-up was used as the date of occurrence. Patients were included in the analysis until an unknown response for bronchiolitis obliterans was reported. Therefore, the rates seen here may differ from those reported in the cumulative prevalence slide which is based on only those patients with known responses for bronchiolitis obliterans at all follow-up time points. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

41 Freedom from Severe Renal Dysfunction
Freedom from Severe Renal Dysfunction* For Pediatric Lung Recipients (Follow-ups: April June 2009) Freedom from severe renal dysfunction rates were computed using the Kaplan-Meier method. The development of severe renal dysfunction is reported on annual follow-ups; a date of diagnosis is not provided. For this figure the date of follow-up was used as the date of occurrence. Patients were included in the analysis until an unknown response for severe renal dysfunction was reported. Therefore, the rates seen here may differ from those reported in the cumulative prevalence slide which is based on only those patients with known responses for severe renal dysfunction at all follow-up time points. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

42 MALIGNANCY POST-LUNG TRANSPLANTATION FOR PEDIATRICS Cumulative Incidence for Survivors (Follow-ups: April June 2009) Malignancy/Type 1-Year Survivors 5-Year Survivors 7-Year Survivors No Malignancy 549 (94.2%) 130 (87.2%) 64 (88.9%) Malignancy (all types combined) 34 (5.8%) 19 (12.8%) 8 (11.1%) Malignancy Type Lymph 31 19 8 Other 2 1 ”Other” includes Liver and primitive neuroectodermal tumor. This table shows the percentage of patients with malignancies reported within 1, within 5 years and within 7 years following transplantation. The percentages are based on patients with known responses. To reduce bias, only patients with responses reported on every follow-up through the 5-year (or 7-year) annual follow-up were included in the “5-Year Survivors” (or “7-Year Survivors”) column. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

43 Freedom from Malignancy For Pediatric Lung Recipients (Follow-ups: April 1994 - June 2009)
Freedom from malignancy rates were computed using the Kaplan-Meier method. The development of malignancy is reported on annual follow-ups; a date of diagnosis is not provided. For this figure the date of follow-up was used as the date of occurrence. Patients were included in the analysis until an unknown response for malignancy was reported. Therefore, the rates seen here may differ from those reported in the cumulative prevalence slide which is based on only those patients with known responses for malignancy at all follow-up time points. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

44 PEDIATRIC LUNG TRANSPLANT RECIPIENTS: Cause Of Death (Deaths: January 1992- June 2009)
0-30 Days (N =82) 31 Days - 1 Year (N = 126) >1 Year - 3 Years (N = 152) >3 Years - 5 Years (N = 71) >5 Years (N = 62) BRONCHIOLITIS 11 (8.7%) 63 (41.4%) 29 (40.8%) 28 (45.2%) ACUTE REJECTION 3 (3.7%) 3 (2.4%) 1 (1.4%) LYMPHOMA 6 (4.8%) 5 (3.3%) 3 (4.2%) 4 (6.5%) MALIGNANCY, NON-LYMPHOMA 1 (0.8%) 1 (0.7%) 1 (1.8%) 1 (1.6%) CMV 5 (4.0%) INFECTION, NON-CMV 11 (13.4%) 45 (35.7%) 24 (15.8%) 16 (22.5%) 6 (9.7%) GRAFT FAILURE 25 (30.5%) 24 (19.0%) 39 (25.7%) 12 (16.9%) 13 (21.0%) CARDIOVASCULAR 2 (1.3%) TECHNICAL MULTIPLE ORGAN FAILURE 6 (7.3%) 10 (7.9%) 7 (4.6%) 5 (8.1%) OTHER 15 (18.3%) 12 (9.5%) 11 (7.2%) 7 (9.9%) Only known causes of death are included in the tabulation. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

45 PEDIATRIC LUNG TRANSPLANT RECIPIENTS: Relative Incidence of Leading Causes of Death (Deaths: January June 2009) Only known causes of death are included in the tabulation. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

46 PEDIATRIC LUNG TRANSPLANT RECIPIENTS (1/1991-6/2008) Risk Factors For 1 Year Mortality/Graft Failure
Multivariable analysis was performed using a proportional hazards model censoring all patients at 1 year. Continuous factors were fit using a restricted cubic spline. Analyses were limited to transplants having essentially complete information regarding risk factors. N=773 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

47 PEDIATRIC LUNG TRANSPLANT RECIPIENTS (1/1991-6/2008) Risk Factors For 1 Year Mortality/Graft Failure
Multivariable analysis was performed using a proportional hazards model censoring all patients at 1 year. Continuous factors were fit using a restricted cubic spline. Analyses were limited to transplants having essentially complete information regarding risk factors. N=773 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

48 PEDIATRIC LUNG TRANSPLANT RECIPIENTS (1/1991-6/2008) Risk Factors For 1 Year Mortality/Graft Failure
Recipient Age Multivariable analysis was performed using a proportional hazards model censoring all patients at 1 year. Continuous factors were fit using a restricted cubic spline. Analyses were limited to transplants having essentially complete information regarding risk factors. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

49 Center Volume Pediatric Transplants
PEDIATRIC LUNG TRANSPLANT RECIPIENTS (1/1991-6/2008) Risk Factors For 1 Year Mortality/Graft Failure Center Volume Pediatric Transplants Multivariable analysis was performed using a proportional hazards model censoring all patients at 1 year. Continuous factors were fit using a restricted cubic spline. Analyses were limited to transplants having essentially complete information regarding risk factors. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

50 PEDIATRIC LUNG TRANSPLANT RECIPIENTS (1/1991-6/2004) Risk Factors For 5 Year Mortality/Graft Failure
Multivariable analysis was performed using a proportional hazards model censoring all patients at 5 years. Continuous factors were fit using a restricted cubic spline. Analyses were limited to transplants having essentially complete information regarding risk factors. N=553 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

51 PEDIATRIC LUNG TRANSPLANT RECIPIENTS (1/1991-6/2004) Risk Factors For 5 Year Mortality/Graft Failure
Multivariable analysis was performed using a proportional hazards model censoring all patients at 5 years. Continuous factors were fit using a restricted cubic spline. Analyses were limited to transplants having essentially complete information regarding risk factors. N=553 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):

52 PEDIATRIC LUNG TRANSPLANT RECIPIENTS (1/1991-6/2004) Risk Factors For 5 Year Mortality/Graft Failure
Recipient Age Multivariable analysis was performed using a proportional hazards model censoring all patients at 5 years. Continuous factors were fit using a restricted cubic spline. Analyses were limited to transplants having essentially complete information regarding risk factors. 2010 ISHLT J Heart Lung Transplant Oct; 29 (10):


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