Table 1:

Demographic data

ControlSIHP Value
Age (mean) (SD) (yr)55.56 (13.85)50.37 (13.27)
    Min/median/max35/58/7730/52/81.186a
Sex
    Male (No.) (%)12 (67)5 (26)
    Female (No.) (%)6 (33)14 (74).014b
  • Note:—Min indicates minimum; max, maximum.

  • a P value based on the Wilcoxon rank sum test of the difference between medians.

  • b P value based on a χ2 test of the difference in proportions.