almost significantP = 0.06
The number of ineffective esophageal contractions was higher with swallows of yogurt than with swallows of barium ( Table 3 ), almost significant in the sitting position (yogurt: 36.5%, barium: 17.3%, P = 0.06) and significant in the supine position (yogurt: 21.2%, barium: 9.6%, P = 0.03).