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. 2018 Dec 19;13(12):e0208240. doi: 10.1371/journal.pone.0208240

Table 2. Demographic and clinical characteristics by country site.

Jordan, N = 206 KSA,
N = 149
Lebanon, N = 133 Qatar, N = 266 UAE,
N = 141
P-value
N (%) N (%) N (%) N (%) N (%)
Age           0.173
Mean; Std. Dev 48.95 (13.95) 50.04 (12.63) 48.79 (14.27) 48.75 (12.19) 46.28 (13.32)  
Age at Diagnosis           0.752
Mean; Std. Dev 39.33 (13.37) 38.72 (12.54) 39.22 (13.99) 39.22 (12.23) 40.69 (12.98)  
Duration of Disease           <0.001*
Mean; Std. Dev 9.62 (8.46)e 11.33 (8.28)e 9.59 (9.75)e 9.53 (7.99)e 5.60 (7.29)  
Gender           0.091
Male 34 (16.5) 18 (12.1) 28 (21.1) 41 (15.4) 14 (9.9)  
Female 172 (83.5) 131 (87.9) 105 (78.9) 225 (84.6) 127 (90.1)  
Marital Status           0.004*
Single 22 (10.7)a,b 14 (9.4) b 30 (22.6)a 28 (10.5) b 18 (12.8) b  
Ever-married 184 (89.3) 135 (90.6) 103 (77.4) 238 (89.5) 123 (87.2)  
Education           <0.001*
No formal education/Primary 50 (24.3) b 58 (38.9)a 17 (12.8) b 60 (22.6) b 60 (42.6)a  
Middle/Secondary School 91 (44.2) a,b 45 (30.2) b 67 (50.4)a 95 (35.7) b 43 (30.5) b  
University 65 (31.6)a 46 (30.9) a 49 (36.8) a 111 (41.7) a 38 (27.0)  
Cigarette Smoking Status           <0.001*
Never Smoked 151 (73.3)b 132 (88.6)a 78 (58.6)c 226 (85.0) a 130 (92.2) a  
Ever Smoked 55 (26.7) 17 (11.4) 55 (41.4) 40 (15.0) 11 (7.8)  
Shisha Smoking Status           <0.001*
Never Smoked 179 (86.9)a,b 138 (92.6)a 101 (75.9)c 249 (93.6) a 128 (90.8) a  
Ever Smoked 27 (13.1) 11 (7.4) 32 (24.1) 17 (6.4) 13 (9.2)  
Coronary Artery Disease           0.092
No 196 (95.1) 140 (94) 129 (97.7) 256 (96.2) 140 (99.3)  
Yes 10 (4.9) 9 (60) 3 (2.3) 10 (3.8) 1 (0.7)  
History of Stroke/TIA           0.128
No 201 (97.6) 144 (96.6) 131 (99.2) 263 (98.9) 141 (100)  
Yes 5 (2.4) 5 (3.4) 1 (0.8) 3 (1.1) 0 (0)  
Peripheral Vascular Disease           0.173
No 202 (98.1) 147 (98.7) 125 (94.7) 259 (97.4) 141 (100)  
Yes 4 (1.9) 2 (1.3) 7 (5.3) 7 (2.6) 0 (0)  
Diabetes Mellitus—Type II           <0.001*
No 182 (88.3)b 111 (74.5)c 120 (90.9)a,b 225 (84.6)b,c 137 (97.2)a  
Yes 24 (11.7)e 38 (25.5) 12 (9.1) 41 (15.4) 4 (2.8)
Ancestry           <0.001*
Gulf 43 (20.9)c 130 (87.2)a 1 (0.8)d 123 (46.2)b 76 (53.9)b  
Levant 138 (67.0)b 4 (2.7)d 126 (94.7)a 44 (16.5)c 35 (24.8)c  
Africa 24 (11.7)b 4 (2.7)c 2 (1.5)c 83 (31.2)a 27 (19.1)a,b  
Other 1 (0.5)b 11 (7.4)a 4 (3.0)a,b 16 (6.0)a 3 (2.1)a,b  
Nationality           <0.001*
Expats 82 (39.8)a 0 (0.0) 15 (11.3) 133 (50.0)a 55 (39.0)a  
Nationals 124 (60.2) 149 (100.0) 118 (88.7) 133 (50.0) 86 (61.0)  

*–p-value < 0.05

a,b,c,d,e–groups with similar letter are not statistically different; groups with different letter are statistically different.