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. Author manuscript; available in PMC: 2023 Jan 9.
Published in final edited form as: J Neurosurg Pediatr. 2021 Jul 9;28(3):326–334. doi: 10.3171/2021.2.PEDS20949

TABLE 1.

Patient characteristics at baseline

Variable Overall Randomized to ETV+CPC Randomized to VPS
Age at randomization in mos 3.1 (2.6, 4.1) 3.1 (2.2, 4.2) 3.1 (2.7, 3.9)
Female sex 39 (39.0%) 21 (41.2%) 18 (36.7%)
Weight in kg 6.0 (5.0, 7.0) 5.6 (4.5, 7.0) 6.2 (5.4, 7.2)
Head circumference in cm 48.5 (45.2, 50.8) 48.1 (44.5, 50.0) 48.7 (45.8, 53.5)
BSID-III scaled scores
 Cognitive 1 (1, 5) 1 (1, 5) 1 (1, 5)
 Expressive language 3 (1, 6) 3 (1, 7) 2 (1, 6)
 Receptive language 6 (1, 8) 6 (2, 9) 5 (1, 8)
 Gross motor 3 (1, 5) 3 (1, 6) 2 (1, 4)
 Fine motor 3 (1, 5) 4 (1, 6) 3 (1, 4)
Brain & CSF vol
 CSF vol in cm3 783 (570, 1050) 741 (542, 992) 824 (639, 1345)
 Raw brain vol in cm3 448 (379, 514) 435 (378, 510) 461 (382, 518)
 Normalized brain vol z-score −2.2 (−4.4, −1.8)) −3.3 (−4.2, −1.7) −2.8 (−4.6, −1.8)
 Normal brain vol 15/99 (15.2%) 7/50 (14.0%) 8/49 (16.3%)

Data are expressed as median (interquartile range) or number (percent). Brain and CSF volume data were available for 50 ETV+CPC and 49 VPS infants. There were no significant between-group differences in the characteristics listed except for head circumference (p = 0.03, Mann-Whitney U-test) and CSF volume (p = 0.05, Mann-Whitney U-test).