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Table 1 Characteristics of the Khuzestan Comprehensive Health Study (KCHS) participants

From: Prevalence and determinants of diabetes and prediabetes in southwestern Iran: the Khuzestan comprehensive health study (KCHS)

Variable   Normal Prediabetes Diabetes
Number 16,430 9395 4673
Sex Male 5750 (52.7%) 3483 (32.0%) 1665 (15.3%)
Female 10,680 (54.5%) 5912 (30.2%) 3008 (15.3%)
Age (years) 20–34.9 7154 (69.6%) 2766 (26.9%) 353 (3.5%)
35–49.9 6297 (53.9%) 3811 (32.7%) 1568 (13.4%)
50–65 2950 (34.8%) 2797 (32.9%) 2745 (32.3%)
BMI (Kg/m2) < 25 6343 (64.5%) 2593 (26.4%) 893 (9.1%)
25–29.9 5991 (52.4%) 3616 (31.6%) 1833 (16.0%)
≥30 4024 (44.3%) 3149 (34.6%) 1915 (21.1%)
Waist circumference (cm) < 90 8052 (64.9%) 3404 (27.4%) 949 (7.7%)
≥90 8306 (46.3%) 5955 (33.2%) 3692 (20.5%)
Hypertension No 14,333 (58.5%) 7501 (30.6%) 2659 (10.9%)
Yes 2089 (34.9%) 1891 (31.6%) 2013 (33.5%)
Diabetes family history No 11,531 (57.6%) 6180 (30.9%) 2314 (11.5%)
Yes 4867 (46.7%) 3201 (30.7%) 2350 (22.6%)
Education Illiterate 2996 (45.3%) 1981 (30.0%) 1629 (24.7%)
Elementary 7094 (52.6%) 4300 (31.9%) 2086 (15.5%)
Secondary 4696 (59.9%) 2340 (29.8%) 808 (10.3%)
Higher education 1642 (64.1%) 772 (30.1%) 149 (5.8%)
Cigarette smoking Never 14,560 (53.8%) 8401 (31.1%) 4085 (15.1%)
Ever 1784 (54.1%) 950 (28.8%) 564 (17.1%)
Hookah smoking Never 15,435 (53.7%) 8853 (30.8%) 4461 (15.5%)
Ever 909 (57.1%) 489 (30.7%) 195 (12.2%)
Opium use Never 15,871 (53.8%) 9119 (30.9%) 4515 (15.3%)
Ever 489 (57.5%) 229 (26.9%) 133 (15.6%)
Alcohol use Never 15,936 (53.7%) 9135 (30.8%) 4589 (15.5%)
Ever 406 (62.7%) 186 (28.7%) 56 (8.6%)
Marital status Single 3050 (58.9%) 1559 (30.1%) 569 (11.0%)
Married 13,380 (52.8%) 7836 (31.0%) 4104 (16.2%)
Ethnicity Arab 7454 (49.9%) 4971 (33.3%) 2501 (16.8%)
Bakhtiari 4236 (62.9%) 1668 (24.8%) 831 (12.3%)
Fars 2984 (53.1%) 1726 (30.7%) 911 (16.2%)
Turk/Kurd/Lur 1720 (54.6%) 1010 (32.0%) 422 (13.4%)
Residence Urban 11,605 (52.1%) 7001 (31.4%) 3678 (16.5%)
Rural 4824 (58.7%) 2394 (29.2%) 995 (12.1%)
Wealth index Q1 4239 (55.5%) 2271 (29.7%) 1131 (14.8%)
Q2 4018 (53.4%) 2340 (31.1%) 1161 (15.5%)
Q3 4435 (54.8%) 2457 (30.4%) 1197 (14.8%)
Q4 3641 (51.5%) 2274 (32.2%) 1152 (16.3%)