Table 2.
Distribution of Normalized Residue Ratio Scale (NRRS) scores for the valleculae (NRRSv) and pyriform sinus (NRRSp) by nonterminal versus terminal swallow within the swallow sequence.
| Stimuli | Swallow Status | n (%) | NRRSv | NRRSp | ||||
|---|---|---|---|---|---|---|---|---|
| Mean | SD | 95% CI | Mean | SD | 95% CI | |||
| Thin liquid | Nonterminal | 122 (31%) | 0.32 | 0.32 | 0.26–0.37 | 0.15 | 0.34 | 0.10–0.19 |
| Terminal | 271 (69%) | 0.16 | 0.25 | 0.13–0.19 | 0.04 | 0.09 | 0.03–0.05 | |
| Extremely thick liquid | Nonterminal | 67 (28%) | 0.41 | 0.57 | 0.28–0.55 | 0.08 | 0.19 | 0.04–0.13 |
| Terminal | 170 (72%) | 0.21 | 0.30 | 0.16–0.25 | 0.02 | 0.07 | 0.00–0.03 |
SD standard deviation; CI confidence interval.