PEDIATRICS Vol. 79 No. 1 January 1987, pp. 165-166
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Tactile/Kinesthetic Stimulation Effects on Preterm Neonates

SAROJ SAIGAL 1 and ROBIN WHYTE 1

1 Department of Pediatrics, Division of Neonatology, McMaster University, 1200 Main St W, Hamilton, Ontario, Canada L8N 3Z5

To the Editor.—

The provocative study by Field et al (Pediatrics 1986;77:654-658) attributes a 47% increase in rate of weight gain to tactile/kinesthetic stimulation of preterm infants, but the reader is presented with a number of perplexing problems in interpretation. We are unable to understand the randomization process, which was achieved after a stratification exercise designed to divide patients into eight poststratification groups. If these were equal in size, then each group must have contained five patients, an odd number.