Table 1

Left side1-150 scrotal skin temperature and rectal temperature in healthy male neonates (group I: age 0 to 4 weeks), infants (group II: age 1 to 12 months), and toddlers (group III: age 13 to 55 months). The results for the right scrotal side were very similar (data not shown, ns for all parameters)

Parameter Group I (neonates)
n = 14
Group II (infants)
n = 22
Group III (toddlers)
n = 12
Mean scrotal T (°C), left sidecotton (c)35.7  (0.42)ab 34.9  (0.61)a 34.7  (0.54)b
plastic (p)36.4 (0.22)1-152 c 36.0 (0.36)1-152 c 35.7 (0.38)1-152 c
Δ p − c0.79 (0.45)1.13 (0.47)0.95 (0.45)
Mean daytime T (°C), left sidecottonnd35.1 (0.60)34.7 (1.08)
plasticnd36.0 (0.54)1-152 35.8 (0.56)
Δ p − cnd1.10 (0.47)1.00 (1.36)
Mean sleep T (°C), left sidecottonnd35.1 (0.65)34.7 (1.08)
plasticnd35.8 (0.37)1-152 35.8 (0.51)
Δ p − cnd1.02 (0.63)1.00 (0.86)
Rectal T (°C)cotton37.0 (0.40)37.0 (0.37)37.3 (0.42)
plastic37.0 (0.38)37.0 (0.38)37.3 (0.42)
Rectal T minus mean scrotal T (°C), left sidecotton1.47 (0.36)de 2.13 (0.70)d 2.62 (0.82)e
plastic0.52 (0.37)1-152 f 1.01 (0.44)1-152 f 1.63 (0.72)1-152 f
Δ p − c−0.91 (0.29)−1.11 (0.54)−1.00 (0.50)
Maximal scrotal T (°C)cotton36.8 (0.35)36.4 (0.41)36.4 (0.30)
plastic37.4 (0.36)1-152 37.0 (0.36)1-152 37.2 (0.41)1-152
Change of napkins per 24 hours (n)cotton5.4 (1.2)5.0 (1.7)3.6 (2.3)
plastic5.6 (1.4)4.5 (1.2)3.5 (2.0)
  • T = temperature, ND = not done, NS = p < 0.05.

  • 1-150 The left side was chosen for direct comparability with literature data (table 2), and since this is the side where varicocele occurs.

  • 1-151 p < 0.01 Cotton v plastic lined napkins.

  • 1-152 p < 0.001 Cotton v plastic lined napkins, identical letters mark significant differences between groups (posthoc test: p < 0.05).