TABLE 1

Testicular Volumes of the Retained Testes in the 3 Groups, and Retained/Scrotal Testis Ratios

Group 1: Unilateral Palpable. Surgery at 9 moGroup 2: Unilateral Palpable. Surgery at 3 yGroup 3: Spontaneous Descent
nMean ± SDP Within GroupanMean ± SDP Within GroupanMean ± SDP Within Groupa
Volume of the retained testis, mL1 vs 2b1 vs 3b2 vs 3b
 3 wk500.26 ± 0.084NS500.27 ± 0.096NS610.26 ± 0.162NS
 6 mo760.39 ± 0.265NS670.39 ± 0.178NS150.44 ± 0.211NS
 1 y700.41 ± 0.165.072720.36 ± 0.147NS540.41 ± 0.147NS
 2 y610.47 ± 0.224.001660.37 ± 0.146NS340.47 ± 0.2450.008
 3 y520.53 ± 0.214.003490.43 ± 0.177NS330.46 ± 0.236NS
 4 y480.51 ± 0.243.001560.39 ± 0.204NS260.58 ± 0.2190.001
 5 y440.53 ± 0.250.023520.46 ± 0.245NS290.53 ± 0.1880.042
Ratio between the retained and the scrotal testis × 1001 vs 21 vs 32 vs 3
 3 wk5087.0 ± 29.34NS4989.9 ± 27.85NS6198.5 ± 79.82NS
 6 mo7676.1 ± 67.89NS6775.1 ± 25.010.0211586.1 ± 22.080.066
 1 y7078.2 ± 27.360.0887271.7 ± 28.620.0515488.0 ± 32.880.001
 2 y6181.8 ± 36.560.0066664.9 ± 23.98NS3476.4 ± 20.440.005
 3 y5290.2 ± 40.130.0094973.2 ± 39.590.0163371.5 ± 26.25NS
 4 y4874.4 ± 25.320.0035662.2 ± 28.840.2772681.4 ± 28.630.001
 5 y4474.9 ± 22.330.0945068.7 ± 23.14NS2975.0 ± 18.530.078
  • a Wilcoxon signed rank test, difference from “0”: 1 vs 2, 1 vs 3, 2 vs 3, P values from comparisons between groups, Mann-Whitney tests.

  • b P values from SAS PROC MIXED.