GenderMale Female 1508 ) 43.6( 1948 )56.4( 167 )11.1( 133 )6.8( 327 )21.7( 419 )21.5( 1014 )67.2( 1396 )71.7( <0.001 )20.055( Marital status Married Unmarried 1444 )41.8( 2012 )58.2( 92 )6.4( 208 )10.3( 325 )22.5( 421 )20.9( 1027 )71.1( 1383 )68.7( <0.001 )16.899( Nationality Saudi Not Saudi 3327 )96.3( 129 )3.7( 288 )8.7( 12 )9.3( 726 )21.8( 20 )15.5( 2313 )69.5( 97 )75.2( 0.231 )2.929( Education High school or lower Bachelor or higher education 1063 )30.8( 2393 )69.2( 53 )5.0( 247 )10.3( 230 )21.6( 516 )21.6( 780 )73.4( 1630 )68.1( <0.001 )27.066( Occupation Employed Unemployed Student 1053 )30.5( 711 )20.6( 1692 )49.0( 87 )8.3( 32 )4.5( 181 )10.7( 227 )21.6( 148 )20.8( 371 )21.9( 739 )70.2( 531 )74.7( 1140 )67.4( <0.001 )26.615( Income <5000 5000-10000 >10000 1942 )56.2( 604 )17.5( 910 )26.3( 158 )8.1( 51 )8.4( 91 )10.0( 399 )20.5( 132 )21.9( 215 )23.6( 1385 )71.3( 421 )69.7( 604 )66.4( 0.114 )7.449( Smoking Absent Present 2919 )84.5( 537 )15.5( 236 )8.1( 64 )11.9( 642 )22.0( 104 )19.4( 2041 )69.9( 369 )68.7( 0.010 )9.222( Chronic disease Absent Present 2996 )86.7( 460 )13.3( 259 )8.6( 41 )8.9( 638 )21.3( 108 )23.5( 2099 )70.1( 311 )67.6( 0.533 )1.257(