Table 7.
Number of improperly answered questions
| Number of improperly answered questions | Number of questionnaires | % of the sample |
|---|---|---|
| 0 | 4680 | 88.1 |
| 1 | 547 | 10.3 |
| 2 | 71 | 1.3 |
| 3 | 13 | 0.2 |
| 4 | 1 | 0.0 |
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