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. 2015 Jan 5;10(1):e112929. doi: 10.1371/journal.pone.0112929

Table 1. General characteristics of the study subjects.

Male Female
Non-obese Obese P-value Non-obese Obese P-value
(n = 1272) (n = 719) (n = 1949) (n = 681)
Age (years) 42.2±0.6 42.1±0.7 <.0001 42.1±0.5 48.5±0.7 <.0001
BMI (Kg/m2) 22.1±0.1 27.4±0.1 <.0001 21.5±0.1 27.7±0.1 <.0001
WC (cm) 79.2±0.2 91.8±0.4 <.0001 73.3±0.3 87.8±0.4 <.0001
IOP (mmHg) 14.1±0.1 14.5±0.2 <.0001 13.7±0.1 14.1±0.2 <.0001
FBS (mg/dl) 91.7±0.4 96±0.4 <.0001 89.5±0.2 94.7±0.5 <.0001
TG (mg/dl) 108.2 (103.6,113) 156.2 (147.9,164.9) <.0001 81.3 (79.1, 83.7) 115.2 (109.4, 121.2) <.0001
TC (mg/dl) 182.2±1.2 197.2±1.6 <.0001 181.5±1 198.1±1.8 <.0001
Insulin (µIU/mL) 8.6 (8.4,8.8) 11.5 (11.1, 11.9) <.0001 9 (8.8, 9.2) 11.4 (11, 11.8) <.0001
HOMA-IR 1.9 (1.9,2) 2.7 (2.6, 2.8) <.0001 2 (1.9, 2) 2.6 (2.5, 2.8) <.0001
HDL (mg/dl) 51.8±0.5 46.9±0.5 <.0001 57.8±0.4 51.9±0.5 <.0001
LDL(mg/dl) 109.1±1.1 119.4±1.6 <.0001 110.2±0.8 124.3±1.5 <.0001
Current smokers (%) 44 (1.5) 41.4 (2.4) 0.3393 5 (0.6) 6.1 (1.4) 0.4334
Heavy drinkers (%) 16.2 (1.1) 20.8 (1.8) 0.0262 1.6 (0.4) 3.3 (0.9) 0.0320
Regular exercisers (%) 25.4 (1.5) 25.5 (2.1) 0.9735 18.6 (1.2) 26 (2.1) 0.0002
Rural residence (%) 22.1 (3.5) 19.6 (3.3) 0.3238 19.5 (3) 26 (4) 0.0047
Low education (%) 21.3 (1.6) 16 (1.6) 0.0100 26.3 (1.7) 47.6 (2.5) <.0001
Lowest income (%) 13.3 (1.4) 11 (1.4) 0.1906 14.9 (1.1) 22.9 (2.3) 0.0002
Employed (%) 80.1 (1.5) 84.5 (2) 0.0824 54.9 (1.6) 53.9 (2.2) 0.7173
Glaucoma FHx (%) 2.5 (0.5) 2.1 (0.7) 0.6504 2.5 (0.4) 1.4 (0.5) 0.1624
Sun exposure 0.6761 0.8443
<2 h 55.3 (2.1) 54.4 (2.2) 70.9 (1.5) 69.6 (2.5)
2 to 5 h 28.5 (1.7) 27.6 (2) 20.5 (1.2) 21.2 (2)
≥5 h 16.1 (1.6) 18 (1.8) 8.6 (1.2) 9.2 (1.5)
Post menopause (%) 26.5 (1.5) 42.5 (2.7) <.0001

Data are presented as mean ± standard deviation or n (%).

Abbreviations: BMI = Body Mass Index, WC = Waist circumference, IOP = Intraocular pressure, FBS = Fasting Blood Sugar, TG = Triglycerides, TC = Total Cholesterol, HOMA-IR = Homeostasis Model Assessment of Insulin Resistance, HDL = High Density Lipoprotein Cholesterol, LDL = Low Density Lipoprotein Cholesterol, FHx = Family History.