| Number | Experimental Group | Control Group | ||
| 8 each | Men | Women | Men | Women |
| 20 - 40 years | 20 - 40 years | |||
| 8 each | Men | Women | Men | Women |
| 41 - 60 years | 41 - 60 years | |||
| 8 each | Men | Women | Men | Women |
| 61 - 75 years | 61 - 75 years | |||