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Table 4 Summary of initial study results and post hoc analyses

From: Evaluation of pre-symptomatic nitisinone treatment on long-term outcomes in Tyrosinemia type 1 patients: a systematic review

 

Death

Need for OLT

Patients with neurological crisis

Initial analysis

Early vs late

Québec cohort

Larochelle 2012 [10]

0/24 vs 2/26

(p = 0.49)a

Birmingham study McKiernan 2015 [14]

0/12 vs 2/5 (p = 0.07)

Québec cohort

Larochelle 2012 [10]

0/24 vs 7/26

(p = 0.01)a

Birmingham study

McKiernan 2015 [14]

0/12 vs 1/5 (p = 0.29)

Bartlett 2014 [17]

0/11 vs 7/20 (p = 0.033)

Québec cohort

Larochelle 2012 [10]

0/24 vs 5/26 (p = 0.051)

Simoncelli 2015 [11]

0/41 vs 5/26 (p = 0.007)

Post hoc 1

Screen detection vs symptomatic detection, all with direct nitisinone initiation

Québec cohort

Larochelle 2012 [10]

0/24 vs 0/5

Birmingham study McKiernan 2015 [14]

0/12 vs 1/4 (p = 0.25)

Québec cohort

Larochelle 2012 [10]

0/24 vs 3/5

(p = 0.0027)

Birmingham study McKiernan 2015 [14]

0/12 vs 1/4 (p = 0.25)

Bartlett 2014 [17]

0/10 vs 5/15 (p = 0.061)

Québec cohort

Larochelle 2012 [10]

0/24 vs 0/5

Simoncelli 2012 [11]

NA

Post hoc 2

Early symptomatic vs late symptomatic,all with direct nitisinone initiation

Québec cohort

Larochelle 2012 [10]

NA

Birmingham cohort

NA

Québec cohort

Larochelle 2012 [10]

NA

Birmingham cohort McKiernan 2015 [14]

NA

Bartlett 2014 [17]

0/1 vs 5/14

Québec cohort

NA

Post hoc 3

Screen detection, direct nitisinone initiation vs screen detection, 1–12 months delayed nitisinone initiation

Québec cohort

Larochelle 2012 [10]

0/24 vs 0/10

Birmingham cohort

NA

Québec cohort

Larochelle 2012 [10]

0/24 vs 0/10

Birmingham cohort McKiernan 2015 [14]

NA

Bartlett 2014 [17]

NA

Québec cohort

Larochelle 2012 [10]

0/24 vs 1/10 (p = 0.294)

Simoncelli 2015 [11]

NA

  1. aBased on our analysis of data presented in the paper by Larochelle et al. [10] using Fisher exact test
  2. NA not applicable, OLT Orthotopic liver transplantation