Research Article

Cranberry for Bacteriuria in Individuals with Spinal Cord Injury: A Systematic Review and Meta-Analysis

Table 2

Study setting, characteristics of volunteers, and missing data.

Study nameReidLinsenmeyerWaitesLeeHessSappal
Year200120042004200720082018

CountryCanadaUSAUSAAustraliaUSAUSA
SettingUrology clinicHosp. clinic, community residingSCI database, community residingVeterans Admin Hosp.Veterans Affairs Medical Center
Inclusion criteriaSCI with UTI historySCI with NLUTDSCI (≥1 year) with NLUTDSCI with NLUTDSCI (≥1 year) with NLUTDSCI (≥6-months) requiring catheterization
Lesion level, ASIA classParaplegia/tetraplegia not reportedFrom cervical 4 to cervical 7: 8
From thoracic 4 to thoracic 10: 7
From thoracic 11 to lumbar 1: 6
Paraplegia/tetraplegia 20/6 (treatment) 14/8 (control) complete/incomplete 23/3 (treatment) 17/5 (control)Paraplegia/tetraplegia
62/91 (treatment) 76/76 (control)
Complete/incomplete 67/86 (treatment) 81/71 (control)
ASIA A: 27
ASIA B: 10
ASIA C: 10
Para/tetra: 24/23
Cervical 5: 1; cervical 6: 3; cervical 7: 3; thoracic 1: 1; thoracic 5: 1; thoracic 7: 1; thoracic 9: 1; thoracic 11: 1
ASIA A: 9
ASIA B: 1
ASIA C: 3
Exclusion criteriaHigh serum creatinine, antibiotics, immunosuppressants, autonomic dysreflexia, cancer, stone, symptomatic UTIAntimicrobial urinary acidifying agents (within 7 days) fever, chillsAntimicrobial symptomatic-UTI renal or hepatic disease
Allergy
Low glomerular filtration rate, immunosuppressant malignancyAntimicrobial symptomatic UTI (within 2 weeks)
Immunocompromising (HIV, steroid, chemotherapy)
Included in UTI definitionWhite blood cells, symptoms (autonomic dysreflexia)White blood cells ≥ 10/μLWhite blood cells ≥ 100 high power field
Symptoms (autonomic dysreflexia)
White blood cells ≥ 10 high power field
Symptoms (autonomic dysreflexia)
White blood cells ≥ 10 high power field
Age (years)Mean: 42.3Not specifiedRange: 20-73Range: 16-82Range: 28-79Range: 18-65
GenderMales: 10/15Males: 16/21Males: 42/48Males: 253/305All men (47)All men (13)
Number (analysed)1521483054713
Loss to follow-up1/1616/3726/740/30510/570/13
Dropout1/16 (6%)16/37 (43%)26/74 (35%)CB: 12/78 (15%)
CB+MH: 16/75 (21%)
Placebo: 10/77 (13%)
MH: 17/75 (23%)
10/57 (17%)0/13

ASIA: American Spinal Injury Association; CB: cranberry; MH: methenamine hippurate; NLUTD: neurogenic lower urinary tract dysfunction; UTI: urinary tract infection.