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Sample Details in Four Pharmaceutical Companies
| Company | Number of Eligible Employees | Number of Valid Questionnaire Respondents | Response Rate (%) | Number of Missing Data | Number of Sample in Final Analysis |
| Company A | 6,932 | 5,997 | 86.5 | 369 | 5,628 |
| Company B | 5,159 | 1,688 | 32.7 | 90 | 1,598 |
| Company C | 5,261 | 4,136 | 78.6 | 107 | 4,029 |
| Company D | 3,941 | 1,316 | 33.4 | 221 | 1,095 |
| Total | 21,293 | 13,137 | 61.7 | 787 | 12,350 |
