Table 1 Summary of Patient and Study Characteristics of 209 Studies Included in our Systematic Review
Characteristic | Number of Studies (%) |
|---|---|
Age, mean (years) | |
  < 70 | 7 (3.3) |
 70–79·9 | 116 (55.5) |
  ≥ 80 | 68 (32.5) |
 Not Reported | 18 (8.6) |
% Women | |
 0–49 | 31 (14.8) |
 50–100 | 165 (78.9) |
 Not Reported | 13 (6.2) |
Type of Dementia | |
 Multiple (e.g. AD + VaD) | 50 (23.9) |
 AD | 110 (52.6) |
 VaD | 10 (4.8) |
 Othera | 9 (4.3) |
 Not Reported | 30 (14.4) |
Severity of Dementia | |
 Mild | 2 (1) |
 Mild/Moderate | 67 (32.1) |
 Mild/Moderate/Severe | 36 (17.2) |
 Moderate | 5 (2.4) |
 Moderate/Severe | 24 (11.5) |
 Severe | 6 (2.9) |
 Not Reported | 69 (33) |
Study Design | |
 RCT | 148 (70.8) |
 Cohort Study | 52 (24.9) |
 Case-Control Study | 5 (2.4) |
 Pairwise Meta-Analysis of RCTs | 2 (1) |
 Other Non-Randomized Study | 2 (1) |
Setting | |
 Clinic/Community | 65 (31.1) |
 Hospital | 7 (3.3) |
 Nursing home/Assisted Living | 45 (21.5) |
 Multiple Settings | 22 (10.5) |
 Not Reported | 70 (33.5) |
Sample Size (No. of patients) | |
  < 200 | 64 (30.6) |
 201–500 | 63 (30.1) |
  > 500 | 81 (38.8) |
 Not Reported | 1 (0.5) |
Duration of Intervention, weeks | |
  < 13 | 65 (31.1) |
 13–30 | 78 (37.3) |
  > 30 | 57 (27.2) |
 Not Reported | 9 (4.3) |