Table 1.
Demographic Characteristics of Sample 1 and Sample 2 of the Victoria Longitudinal Study
| Total | Sample 1 | Sample 2 | |
| n | 988 | 464 | 524 |
| Age | |||
| M | 68.80 | 69.13 | 68.51 |
| SD | 6.85 | 5.86 | 7.62 |
| Gender (% female) | 63.77 | 59.91 | 67.18* |
| Years of education | |||
| M | 14.19 | 13.45 | 14.86*** |
| SD | 3.18 | 3.08 | 3.13 |
| Sample size and average follow-up | |||
| Wave 1 | |||
| n | 988 | 464 | 524 |
| M | — | — | — |
| Wave 2 | |||
| n | 737 | 332 | 405 |
| M | 3.09 | 2.92 | 3.22 |
| Wave 3 | |||
| n | 586 | 250 | 336 |
| M | 6.32 | 5.90 | 6.62 |
| Wave 4 | |||
| n | 177 | 177 | — |
| M | 8.91 | 8.91 | — |
| Wave 5 | |||
| n | 129 | 129 | — |
| M | 12.28 | 12.28 | — |
*p < .05; ***p < .001.