Table 1 Focus Group Populations
From: Conceptual adequacy of the neuropathic pain symptom inventory in six countries
Country | Number of focus groups | Total number of subjects |
|---|---|---|
United States | 6 | 50 |
Brazil | 1 (plus 10 individual in-depth interviews)a | 16 |
China | 2 | 18 |
Finland | 2 | 17 |
Spain | 2 | 16 |
Japan | 2 | 13 |