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Table 2 The series merged, 20 years of Nuss operations in children 1987–2006

From: Peri-operative data on the nuss procedure in children with pectus excavatum: independent survey of the first 20 years' data

Reference
number
Patients
operated
Type of study Number of
centres
Comment
1 329 Retrospective One Series update on ref. 24
3 21 Comparative One  
4 52 Retrospective One  
5 335 Retrospective One Encompasses ref. 19
6 53 Retrospective One  
10 22 Retrospective One  
11 40 Retrospective Not reported  
12 172 Retrospective Eight  
13 31 Retrospective One  
15 20 Retrospective One Modified technique
16 36 Comparative One  
23 27 Retrospective One Subgroup of all-age cohort
8* 107 Comparative One Similar data to ref. 9
9* 107 Retrospective Not reported Similar data to ref. 8
14 80 Comparative One  
17** 35 Comparative One Same centre as ref. 18
18** 21 Retrospective One Same centre as ref. 17
22 461 Retrospective One  
Total 1949