GAD1 and generalized anxiety disorder: Until recently, in research studies and clinical practice, postpartum anxiety was identified and measured using general tools which were not designed or validated for use in postpartum populations (e.g. The State-Trait Anxiety Inventory [STAI]; Spielberger et al. 1983; and the Generalised Anxiety Disorder-7 [GAD-7]; Spitzer et al. 2006]). This was evidenced in a systematic review of anxiety measures validated in perinatal populations, which reported that no factor analyses had been conducted on either the STAI or the GAD in a perinatal sample (Meades and Ayers 2011).