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Table 2 Results of the study

From: The importance of laryngoscopic findings as predictors of the treatment outcomes of laryngopharyngeal reflux: a retrospective review of 143 cases

Laryngoscopic findings

Symptoms improved

Symptoms not improved

Row total

Observed

Expected

Chi-square statistic

Observed

Expected

Chi-square statistic

Normal

12

23.73

5.80

27

15.27

9.00

39

Mild to moderate

44

37.11

1.28

17

23.89

1.99

61

Moderate to severe

31

26.16

.90

12

16.84

1.39

43

Column total

87

56

143 (grand total)

  1. The chi-square statistic is 20.3515. The p-value is .000038. The result is significant at p < .05