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. 2012 Apr 18;2012(4):CD001543. doi: 10.1002/14651858.CD001543.pub4

Kovacs 1997.

Methods Single centre, two arms RCT of Shouldice vs Bassini‐Kirschner. 
 Randomization: date of birth, allocation concealment not specified. 
 Maximum follow up: 1 year. 
 Exclusions after randomizations: no. 
 Losses to follow up: Shouldice 18, Bassini‐Kirschner 26 (reasons not specified). 
 Jadad quality score: 2.
Participants Country: Hungary. 
 Setting: centre not specialized in hernia repair. 
 Total enrolled patients: 129 (63 Shouldice vs 66 Bassini‐Kirschner). 
 Mean age: Shouldice 52; Bassini‐Kirschner 54. 
 Gender: 129 M. 
 Inclusion criteria: age>18, primary inguinal hernia. 
 Exclusion criteria: no known. 
 Demographic and baseline data reported: comparability for age, bilaterality and sex.
Interventions Shouldice standard (n=63) performing 4 layers. Non‐absorbable monofilament. 
 Bassini‐Kirschner (n=66). Suture in Mersilene 0.
Outcomes Recurrence (lump in groin and re operated). 
 Lenght of postoperative stay. 
 Wound infection. 
 Testicular atrophy 
 Haematoma. 
 Duration of the operation.
Notes Recurrence at 1 year follow up assessed by a hospital staff surgeon in 85 patients (66%). 
 Conflict of interest: not reported. 
 Sources of funding: not reported.
Risk of bias
Bias Authors' judgement Support for judgement
Allocation concealment (selection bias) High risk C ‐ Inadequate