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Table 3 Univariate analyses for CS survival

From: Nodal disease predicts recurrence whereas other traditional factors affect survival in a cohort of South African patients with differentiated thyroid carcinoma

Variable N 10-year CS survival % p-value (log rank) Prognostically unfavourable subgroup
Age
 Less than 25 27 100 0.01* 56–65
 26–35 44 90 0.002*  
 36–45 52 98 0.003*  
 46–55 40 94 0.03*  
 56–65* 41 72   
 66–75 23 86   
 Greater than 76 4 45   
Age
 <  45 116 97 <  0.001 ≥ 45
 ≥ 45 115 80   
Gender
 Male 42 95 ns
 Female 189 91   
T stage
 T0 1 100   T4
 T1Ϯ* 53 98   and
 T2Ϯ* 79 100   TX
 T3#* 53 77   
 T4 25 71 <  0.01Ϯ
0.018#
 
 TX 20 65 <  0.01*  
Extra-thyroid extension
 NoϮ 184 98 <  0.001* Extra-thyroid
 Yes* 31 76   extension and
 Unknown 16 59 <  0.001 Ϯ unknown
Pathology
 Follicular and Hurthle 90 82   Follicular and
 Papillary 140 95 0.012* Hurthle
Nodal status
 N0Ϯ 147 96   NX
 N1 67 89   
 NX (unknown) 17 70 0.001Ϯ  
Residual tumour
 R0/1Ϯ 179 99   R2, n/a
 R2 20 61 <  0.001Ϯ and
 n/a 18 56 <  0.001Ϯ unknown
 Unknown 14 85 <  0.001Ϯ  
Metastases
 M0 203 96 0.001* M1
 M1* 23 54   
 MX (unknown) 5 67   
Post-operative risk stratification for risk of recurrence
 High* 44 46   
 Intermediate 98 91 <  0.001* High
 Low 82 96 <  0.001*  
 Unknown 7 80   
  1. Symbols denote the associated prognostic variable for each p-value