Reanalysis and External Validation of a Decision Tree Model for Detecting Unrecognized Diabetes in Rural Chinese Individuals

Table 1

Characteristics of population 1.

	Normal	Prediabetes	Diabetes
Number	1868	173	220
Sex (M/F)	638/1230	71/102	108/112
Age (year)	51.66 ± 10.35	56.15 ± 9.69	56.22 ± 10.06
Body mass index (kg/m^2)	25.72 ± 3.74	27.00 ± 3.79	27.91 ± 3.93
Waist circumference (cm)	85.45 ± 10.18	89.90 ± 10.29	93.59 ± 10.22
Systolic pressure (mmHg)	131.57 ± 18.61	138.16 ± 17.76	137.75 ± 16.40
Diastolic pressure (mmHg)	81.27 ± 11.42	84.76 ± 17.76	83.56 ± 11.09
% with a family history of diabetes^a	3.40%	11.00%	11.40%
% with history of hypertension	17.70%	43.90%	47.30%

Values are means (SD) or n (%). ^aEither a sibling or parent with diabetes; compared to the normal subjects by unpaired t-test or Chi-square test; versus normal .