Table 1.
Sample Characteristics and Descriptive Statistics for Dependent and Independent Variables
| Time 1 | Time 2 | Time 3 | Time 4 | |||||
|---|---|---|---|---|---|---|---|---|
|
| ||||||||
| N | M (SD) | N | M (SD) | N | M (SD) | N | M (SD) | |
| Demographic Variables | ||||||||
| Age | 202 | 76.75 (6.90) | 152 | 77.59 (6.80) | 114 | 77.94 (6.62) | 99 | 77.72 (6.58) |
| Percent female | 202 | 73% | 152 | 72% | 114 | 73% | 99 | 70% |
| Estimated | 201 | $114,160 | 99 | $105,631 | ||||
| Household incomea | (112,599) | (105,402) | ||||||
| Dependent Variable | ||||||||
| HARS | 202 | 8.86 (6.95) | 152 | 8.86 (6.95) | 114 | 7.92 (6.68) | 99 | 7.28 (7.28) |
| Predictor Variables | ||||||||
| ASIm | 200 | 2.14 (2.59) | 151 | 1.93 (2.34) | 112 | 1.74 (2.57) | 98 | 1.74 (2.20) |
| ASItotal | 200 | 16.93 (9.88) | 151 | 16.05 (10.57) | 113 | 15.96 (10.73) | 98 | 15.33 (8.75) |
| STAI-T | 199 | 33.76 (10.30) | 148 | 33.11 (9.73) | 108 | 30.65 (7.97) | 97 | 33.22 (9.88) |
| PANAS-N | 201 | 15.10 (5.88) | 107 | 15.36 (6.27) | 110 | 14.54 (5.78) | 99 | 15.47 (6.14) |
| PANAS-P | 200 | 31.47 (8.47) | 106 | 31.33 (7.99) | 110 | 32.84 (7.24) | 98 | 31.90 (7.42) |
| DRS | 199 | 137.94 (5.46) | 151 | 137.67 (5.21) | 113 | 139.10 (4.94) | 96 | 138.06 (4.85) |
| MFQf | 193 | 164.86 (29.93) | 139 | 164.05 (28.56) | 105 | 163.55 (26.60) | 90 | 160.57 (28.04) |
Note. HARS = Hamilton Anxiety Rating Scale; ASIm = Fear of Mental Dyscontrol subscale of the Anxiety Sensitivity Index; ASItotal = Anxiety Sensitivity Index total score; STAI-T = Spielberger State-Trait Anxiety Inventory – Trait Scale score; PANAS-N = Negative Affect Scale score of the Positive and Negative Affect Schedule; DRS-2 = Mattis Dementia Rating Scale 2 total raw score; MFQf = the Memory Functioning Questionnaire general frequency of forgetting subscale score.
a
Income level was estimated using average tax return data reported by the Internal Revenue Service for zip codes.