Table 1.
Frequency distributions of two-question case-finding instrument
| Number of ‘yes’ answers | Group 1 | Group 2 |
| N (%) | N (%) | |
| 0 | 51 (57.3) | 1097 (73.1) |
| 1 | 25 (28.1) | 229 (15.3) |
| 2 | 13 (14.6) | 174 (11.6) |
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