TABLE 1

Swallow characteristics for fast-paced drinking in 151 patients with COPD based on presence/absence of aspiration

Aspiration not detectedAspiration# detectedMean difference (95% CI)
Subjects n12130
Timed swallow metrics
 Total swallow duration (s)8.83±4.1711.07±7.81*2.24 (0.19–4.29)
 Number of swallows to complete task5.92±2.285.60±2.060.32 (-0.58–1.22)
 Time per swallow (s per swallow)1.51±0.411.90±0.73***0.39 (0.19–0.59)
 Swallow frequency (swallows per s)0.70±0.160.59±0.18***0.11 (0.04–0.18)
Swallow pattern
 Sequential74 (61)16 (53)
 Mixed36 (30)10 (33)
 Discrete11 (9)4 (13)

Data are presented as mean±sd or n (%), unless otherwise stated. #: aspiration score of 6–8 on the penetration–aspiration scale [9]. *: p≤0.05; ***: p≤0.001.