Nasal chemosensory performance (Sniffin’ Sticks) was well within the reported normal range (Kobal et al., 2000) for healthy controls and CHR patients (Fig. 1). There were no significant group main effects or group × nostril interaction effects for odor thresholds or odor identification (all F < 1.0), indicating preserved olfactory function in CHR patients. However, the three converters, while showing normal odor identification, had substantially poorer odor thresholds (cf. inserts in Fig. 1).
