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) |