| Whole Group | Group 1 | Group 2 | P |
---|---|---|---|---|
 | Mean ± SD | Mean ± SD | Mean ± SD |  |
HDRS change (%) | 45.6 ± 26.0 | 64.3 ± 18.7 | 33.1 ± 22.7 | <0.0001d |
Responders (yes/no)a | 12/28 | 10/6 | 2/22 | 0.0004 |
No. of treatments | 7.7 ± 3.2 | 8.3 ± 2.5 | 7.4 ± 3.5 | ns |
MMSE change (%)b | -1.8 ± -10.1 | 2.7 ± 11.2 | -5.3 ± -7.6 | 0.0159e |
Cognitive risk (yes/no)c | 18/18 | 6/10 | 12/8 | ns |
Cognitive risk and nonresponse (yes/no) | 11/25 | 1/15 | 10/10 | 0.0091 |