Weaning duration: Two studies (Cader et al 2010, Caruso
et al 2005) with 53 participants provided post-intervention
data for pooling to examine the effect of inspiratory muscle
training on the duration of weaning from mechanical
ventilation. A random-effects model was used as there
was significant heterogeneity (I2 = 73%). The overall effect
was not significant (MD = 21 hours, 95% CI –10 to 53) but
favoured the experimental group (Figure 6, see also Figure
7 on eAddenda for detailed forest plot).