From: Implementing the World Mental Health Survey Initiative in Portugal – rationale, design and fieldwork procedures
Sample distribution
%
(n)
Interview
38.2%
3,849
57.3%
Refusal
28.5%
2,865
42.7%
Sub-total
6,714
No contact
14.0%
1,408
Circumstantial (outside the sample definition)
17.0%
1,707
Others
2.3%
238
Total
10,067