Table 1—

Demographic and disease characteristics of the study population

VariableU.K.U.S.Total
n290128418
Sex (men) (%)72.467.270.8
Age (years)*61.05 ± 11.8263.39 ± 9.3461.76 ± 11.17
Education (%)*
 Primary3.21.62.7
 Secondary59.543.154.5
 Some college25.014.621.9
 College graduate7.421.111.5
 Postgraduate4.919.59.3
Marital status (living alone)33.226.831.2
Diabetes type (type 2)*66.687.472.9
Diabetes duration (years)17.31 ± 11.3416.75 ± 9.8517.14 ± 10.89
Diabetes complications1.56 ± 1.051.57 ± 1.201.56 ± 1.10
Concomitant disorders*0.76 ± 0.891.51 ± 1.290.99 ± 1.08
VPT (V)*39.43 ± 9.4845.54 ± 8.5241.29 ± 9.61
NDS*7.21 ± 2.267.67 ± 2.097.35 ± 2.22
Foot ulcer history (%)
 Ever*28.350.835.3
 Current25.517.924.3
  • Data are means ± SD.

  • *

    * Differences between countries significant (P < 0.05) based on χ2 statistic (for percentage) or t test (for means).