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Table 2 Association between sociodemographic and environmental variables and blood pressure level

From: Noise exposure and hypertension: investigation of a silent relationship

Variable Normotensive Hypertensive p-value
  n (%) n (%)  
  n = 1299 n = 430  
Age (years)    
  <30 332 (92,7) 26 (7,3) 0,00
  30-34 260 (85,0) 46 (15,0)  
  35-39 236 (80,8) 56 (19,2)  
  40-44 186 (68,1) 87 (31,9)  
  45-49 135 (62,5) 81 (37,5)  
  ≥50 150 (52,8) 134 (47,2)  
Gender    
  Female 127 (88,2) 17 (11,8) 0,00
  Male 1172 (73,9) 413 (26,1)  
Marital status    
  Single 738 (80,3) 181 (19,7) 0,00
  Married 561 (69,3) 249 (30,7)  
Education    
  Up to incomplete elementary school 56 (69,1) 25 (30,9) 0,07
  Complete elementary school 96 (72,2) 37 (27,8)  
  Incomplete middle school 256 (73,1) 94 (26,9)  
  Complete middle school 239 (79,1) 63 (20,9)  
  Incomplete high school 157 (77,7) 45 (22,3)  
  Complete high school 392 (73,0) 145 (27,0)  
  College/university (complete or not) 103 (83,1) 21 (16,9)  
Socioeconomic condition*    
  Lower 331 (78,3) 92 (21,7) 0,09
  Higher 968 (74,1) 338 (25,9)  
Physical activity    
  No 750 (73,1) 276 (26,9) 0,04
  Irregular 257 (76,5) 79 (23,5)  
  Regular 292 (79,6) 75 (20,4)  
Tobacco use    
  Non-smoker 1038 (77,1) 308 (22,9) 0,00
  Smoker 261 (68,1) 122 (31,9)  
Alcohol consumption    
  No consumption 839 (77,8) 239 (22,2) 0,00
  Regular 460 (70,7) 191 (29,3)  
Body Mass Index    
  Normal 619 (86,2) 99 (13,8) 0,00
  Overweight 532 (71,7) 210 (28,3)  
  Obese 148 (55,0) 121 (45,0)  
Type of Service    
  Industrial maintenance 464 (76,1) 146 (23,9) 0,29
  Civil Works 453 (73,7) 162 (26,3)  
  Building cleaning 274 (77,8) 78 (22,2)  
  Others 108 (71,1) 44 (28,9)  
Heat    
  Non-exposed 1154 (75,6) 372 (24,4) 0,19
  Exposed 145 (71,4) 58 (28,6)  
  1. *Socioeconomic condition: Existent - presence of piped water + regular garbage collection + sewage system + electricity; absence: inexistence of at least one of the above factors.