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. Author manuscript; available in PMC: 2018 Mar 1.
Published in final edited form as: Arch Gerontol Geriatr. 2016 Nov 14;69:77–96. doi: 10.1016/j.archger.2016.11.006

Table 3.

Statistically Significant Adverse Events – Antimuscarinic versus Tolterodine IR/ER or Oxybutynin IR

Outcome Total Comparisons/Studies All Studies Oxybutynin ER Solifenacin Total Studies Oxybutynin ER Total Studies Fesoterodine
RR (95% CI) RR (95% CI)(Minassian et al., 2007) RR (95% CI)(Herschorn et al., 2011) RR (95% CI)(Sand et al., 2004) RR (95% CI)(DuBeau et al., 2012)

Versus Oxybutynin IR Versus Tolterodine IR Versus Tolterodine ER
AEs 2 0.78 (0.61–0.98)
NNH=6.0
0.94 (0.59–1.49) 0.73 (0.56–0.94)
NNH=3.9
0 -- 1 1.37 (1.21–1.55)
NNH =6.7
Dry Mouth 2 0.56 (0.38–0.83)
NNH=3.3
0.69(0.40–1.18) 0.46 (0.27–0.78)
NNH=2.3
1 1.18 (0.72–1.93) 1 2.13 (1.69–2.69)
NNH =6.0
Dry Mouth, Moderate 1 0.05 (0.00–0.86)
NNH=3
-- 0.05 (0.00–0.86)
NNH=3
0 -- 0 --
Treatment-related AEs 1 0.68 (0.49–0.96)
NNH=3.6
-- 0.68 (0.49–0.96)
NNH=3.6
0 -- 0 --

Only reported if both studies reported outcomes

*

I2 >25%

AEs = Adverse Events; CI = confidence intervals; ER = extended release; IR = immediate release; NNH = Number Needed to Harm; RR= rate ratio