Table 1.

Characteristics of subjects included in developing and testing accuracy of the continuous metabolic syndrome score

	All (n=4,820)	Sample AF1 (Ghana and Nigeria) (n=4,023)	Sample AF2 (Kenya) (n=797)	P-valuea
Mean ± SD
Age, year	47.33±15.64	45.73±16.02	55.43±10.33	<0.001
Waist circumference, cm	88.86±13.07	88.53±12.94	90.55±13.61	<0.001
Systolic BP, mmHg	134.13±23.65	133.56±23.76	137.00±22.87	<0.001
Diastolic BP, mmHg	80.05±13.98	79.39±14.27	83.37±11.88	<0.001
Plasma glucose, mg/dL	127.22±78.62	125.69±75.35	134.97±93.05	0.008
HDL cholesterol, mg/dL	46.50±16.92	46.24±16.89	47.83±17.04	0.016
Triglyceride, mg/dL	107.43±73.13	94.24±51.18	173.97±117.59	<0.001
cMetSb	−0.028±3.20	−0.06±3.14	0.14±3.46	0.095
pcMetSc	−0.016±1.00	−0.04±1.00	0.09±1.02	0.001
n (%)
MetSd	1716 (35.6)	1318 (32.8)	398 (49.9)	<0.001
Women	2811 (58.3)	2389 (59.4)	422 (52.9)	<0.001

^aBased on t-test for differences of means and Pearson’s chi-square test statistic for differences of proportions between AF1 (sample from Ghana and Nigeria) and AF2 (sample from Kenya).

^bcMetS: continuous metabolic syndrome score based on sum of standardized components of the metabolic syndrome.

^cpcMetS: continuous metabolic syndrome score based on the first principal component loadings of the metabolic syndrome components in principal components analysis.

^dMetS: the metabolic syndrome (present/absent) based on definition of the National Cholesterol Education Program (NCEP).