Table 1.
Descriptive statistics for the two cohorts of monkeys used in the analysis. Note that for the YNPRC cohort, subjects were assessed only with either no or four prior MRI scan exposures. Additional exposures to anaesthesia for other reasons were included in the analyses. HPL, Harlow Primate Laboratory; YNPRC, Yerkes National Primate Research Center.
| Number of prior MRI exposures |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| HPL |
YNPRC |
|||||||||
| 0 (n=2) | 1 (n=4) | 2 (n=10) | 3 (n=6) | 4 (n=6) | 0 (n=6) | 1 (n=0) | 2 (n=0) | 3 (n=0) | 4 (n=9) | |
| Age at scan (postnatal days) | 360–363 | 315–380 | 313–407 | 320–393 | 346–402 | 531–559 | 530–555 | |||
| Weight at scan (kg) | 2.06 (0.16) | 2.20 (0.09) | 2.22 (0.27) | 2.11 (0.21) | 2.45 (0.22) | 2.95 (0.26) | 2.99 (1.36) | |||
| Mean age at first scan (postnatal days) | 361.5 (1.5) | 226.3 (30.4) | 115.3 (19.5) | 50.7 (17.6) | 20.8 (7.1) | 541.7 (9.3) | 14 (4) | |||
| Sex ratio (male:female) | 1:1 | 2:2 | 5:5 | 3:3 | 5:1 | 3:3 | 4:5 | |||