Skip to main content

Table 1 General characteristics of subjects

From: The association between blood cadmium level, frequency and amount of gejang (marinated crab) intake

  N(%)
Characteristics Total Male Female p-value*
Sex 1381 (100.0) 627 (45.4) 754 (54.6)  
Age (yr)     
20–29 320 (23.2) 155 (24.7) 165 (21.9) 0.709
30–39 313 (22.7) 136 (21.7) 177 (23.5)  
40–49 303 (21.9) 133 (21.2) 170 (22.5)  
50–59 305 (22.1) 137 (21.9) 168 (22.3)  
≥60 140 (10.1) 66 (10.5) 74 (9.8)  
Education     
Middle school or less 252 (18.3) 94 (15.0) 158 (21.0) 0.015
High school 579 (41.9) 270 (43.1) 309 (41.0)  
College or more 549 (39.8) 263 (41.9) 286 (38.0)  
Incomea     
Low 344 (25.0) 156 (24.9) 188 (25.0) 0.854
Mid-low 344 (25.0) 163 (26.0) 181 (24.1)  
Mid-high 345 (25.0) 154 (24.6) 191 (25.4)  
High 345 (25.0) 153 (24.5) 192 (25.5)  
Smoking     
Never 837 (60.6) 164 (26.2) 673 (89.3) <0.001
Former 224 (16.2) 192 (30.6) 32 (4.2)  
Current 320 (23.2) 271 (43.2) 49 (6.5)  
Alcohol consumption (n)     
Never 186 (14.5) 60 (9.8) 126 (18.8) <0.001
≤1/month 418 (32.6) 130 (21.2) 288 (43.0)  
2-4/month 383 (29.8) 207 (33.8) 176 (26.3)  
≥1/week 296 (23.1) 216 (35.2) 80 (11.9)  
  1. *Calculated by chi-square test
  2. aMean monthly household income was classified into quartiles
\