Appendix Table 1.
Demographic and Health Information as a Total Sample and by IGF-1 Level (N = 94)
| Total
|
IGF-1 Level
|
||||
|---|---|---|---|---|---|
| Low (≤ 75 ng/ml) N = 48 |
High (> 75 ng/ml) N = 46 |
t or χ2 test or F test (p value) | df | ||
|
|
|
||||
| log IGF-1, Mean (SD) | −0.32 (0.35) | −0.59 (0.23) | −0.03 (0.20) | −12.43(< .001) | 92 |
| Age, Mean (SD) | 60.68 (8.42) | 62.36 (8.46) | 58.91 (8.09) | 2.02 (.046) | 92 |
| Male, n (%) | 39 (41.5%) | 22 (45.8%) | 17 (37.0%) | 0.83 (.41) | |
| Years of education, Mean (SD) | 15.03 (3.39) | 14.48 (3.51) | 15.61 (3.19) | −1.63 (.11) | 92 |
| BMI, Mean (SD) | 26.80 (4.55) | 26.70 (5.14) | 26.92 (3.89) | −0.23 (.82) | 92 |
| Use of ERT, n (%) | 4 (4.3%) | 3 (6.3%) | 1 (2.2%) | 0.33 (.62) | 1 |
| Use of anti-hypertensive, n (%) | 18 (19.1%) | 11 (22.9%) | 7 (15.2%) | 0.34 (.44) | 1 |
| Sleep quality, Mean (SD) § | 4.87 (2.90) | 4.57 (2.77) | 5.18 (3.03) | −1.00 (.32) | 90 |
| GDS ‡ | 1.05 (0.87) | 0.98 (0.92) | 1.12 (0.12) | −0.79 (.43) | 92 |
| AVLT total learning, Mean (SD) | 44.22 (8.62) | 8.86 (1.28) | 8.37 (1.23) | 0.20 (.66) a | 91, 1 |
| AVLT immediate recall, Mean (SD) | 8.83 (2.82) | 8.46 (3.06) | 9.22 (2.52) | 1.17 (.28) a | 91, 1 |
| AVLT delayed recall, Mean (SD) | 8.26 (3.06) | 7.67 (3.37) | 8.87 (2.59) | 3.71 (.057) a | 91, 1 |
| AVLT recognition, Mean (SD) | 9.48 (4.13) | 8.63 (4.73) | 10.37 (3.21) | 3.71 (.057) a | 91, 1 |
Note.
§
two persons’ data were missing.
‡
GDS was recoded as ln(GDS raw score +1).
a
controlled for age.