| Sampling Performance | ||||||||||
| losses | % of | |||||||||
| sub- | remaining | of non- | ||||||||
| detail | totals | (n) | (%) | refusal n | ||||||
| sampled | 5000 | |||||||||
| not at home | 220 | |||||||||
| deceased, mental/physical problems, foreigner | 75 | |||||||||
| outside age range of 20-64 | 13 | |||||||||
| computer / data handling failures (during/after intv) | 29 | |||||||||
| subtotal of non-refusal failures | 337 | 4663 | 0.93 | 1.00 | ||||||
| refusal (before got to central interview site) | 827 | 3836 | 0.77 | 0.82 | ||||||
| refusal (at start of interview) | 30 | 3806 | 0.76 | 0.82 | ||||||
| refusal (during interview) | 40 | 3766 | 0.75 | 0.81 | number answering last few Qs | |||||
| subtotal of refused interview | 897 | |||||||||
| refused to provide urine (3766-3467) | 299 | 3467 | 0.69 | 0.74 | 3467 on urine record in the field | |||||
| urine/data handling problems (3467-3426) | 41 | 3426 | 0.69 | 0.73 | 3426 urine results in data set | |||||
| subtotal of failures to get urine results | 340 | |||||||||