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. 2015 Jan 20;2015(1):CD001843. doi: 10.1002/14651858.CD001843.pub5

Mathewson‐Chapman 97.

Methods Randomised: yes, block procedure
 Method of allocation: not reported
 Blinding: none
 Dropouts: 2, not accounted for
 Intention to treat: not clear
Participants Recruitment: pre‐operative
Included: all men undergoing radical prostatectomy
N = 53 men
 Randomised pre‐operatively
Interventions Pre and post‐operative intervention
Group A (27) intervention: pre‐operatively received further instruction and practice with PME protocol home exercises and biofeedback (anal probe) (Incare 8900); practiced at home 3 times a week, starting with daily 15 PFMT and increasing by 10 every 4 weeks to a maximum of 35 PFMT
Group B (24) control: post‐operatively no further interventions until week 5 when pelvic muscle strength was assessed
Both: pre‐operatively, both groups received 30 minutes' prostate education programme and baseline 'perineal muscle evaluation' (not defined); as well all were taught to contract the perineal muscle and hold for a few seconds prior to standing, lifting or coughing and limit the amount of tea, chocolate, alcohol and over‐the‐counter medications
Length of follow‐up: 12 weeks
Outcomes Main outcome: urine loss measured by 24 hour pad test, frequency of micturitions (self‐recorded bladder diary), number of pads used; days to achieve continence from baseline
Secondary outcomes: perineal muscle strength (method not described)
Continence definition: self‐report of return of continence
Data collection: 3 day bladder diaries at weeks 2, 5, 9 and 12. 24 hour pad test at weeks 5 and 12
Notes Inclusion of other modalities such as caffeine limitation and using perineal muscles during any event which increased abdominal stress may have masked any treatment benefit
Extra information obtained from thesis
Risk of bias
Bias Authors' judgement Support for judgement
Random sequence generation (selection bias) Low risk Block procedure
Allocation concealment (selection bias) Unclear risk No description. Therefore judged to be unclear risk
Blinding of participants (performance bias) High risk Blinding to intervention not possible
Blinding of personnel (performance bias) Unclear risk No description. Therefore judged to be unclear risk
Blinding of outcome assessment (detection bias) 
 All outcomes Unclear risk No description. Therefore judged to be unclear risk
Incomplete outcome data (attrition bias) 
 All outcomes Unclear risk Two dropouts
Selective reporting (reporting bias) Low risk Outcomes in methods reported
Financial support Unclear risk Not reported
Approved by medical ethics committee Low risk "Permission to conduct this study was obtained from the Univerisity of Florida Health Center Institutional Review Board (IRB)."
Informed consent Low risk "The informed consent was explained to each subject, and his signature was obtained to confirm consent to participate in the study"
ITT analysis Unclear risk Not specified. Therefore judged to be unclear risk