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Distribution of responses to the question: “Do you think smile is one of the most important facial aesthetic features?”
| Answer | Gender | Year of study | ||
|---|---|---|---|---|
| Male, n (%) | Female, n (%) | 4th, n (%) | 5th, n (%) | |
| Yes | 130 (98) | 297 (99) | 175 (100) | 252 (98,5) |
| No | 2 (2) | 2 (1) | 0 (0) | 4 (1,5) |
| Total | 132 (100) | 299 (100) | 175 (100) | 256 (100) |
| χ2 statistics (df) | 0.713 (1) | 2.760 (1) | ||
| p-value | 0.398 | 0.097 | ||
df Degrees of freedom
