Table 1: Actual sample sizes used in analyses by urine iodine status, gender, race/ethnicity, age, and smoking status. Data from National Health and Nutrition Examination Survey 2007-2012.
For blood lead | For urine lead | ||||||||
---|---|---|---|---|---|---|---|---|---|
Males | Females | Males | Females | ||||||
Urine iodine status | Demographic group | N | % | N | % | N | % | N | % |
Iodine deficient | Total | 1181 | 100.0 | 1329 | 100.0 | 777 | 100.0 | 856 | 100.0 |
Age: 12-19 years | 205 | 17.4 | 231 | 17.4 | 125 | 16.1 | 156 | 18.2 | |
Age: 20-64 years | 816 | 69.1 | 921 | 69.3 | 550 | 70.8 | 507 | 59.2 | |
Age: >= 65 years | 160 | 13.5 | 177 | 13.3 | 102 | 13.1 | 103 | 12.0 | |
Non-Hispanic White | 482 | 40.8 | 557 | 41.9 | 311 | 40.0 | 346 | 40.4 | |
Non-Hispanic Black | 295 | 25.0 | 336 | 25.3 | 202 | 26.0 | 211 | 24.6 | |
Mexican American | 191 | 16.2 | 188 | 14.1 | 120 | 15.4 | 113 | 13.2 | |
Other Hispanics | 106 | 9.0 | 139 | 10.5 | 64 | 82 | 99 | 11.6 | |
Other Race/ethnicities | 107 | 9.1 | 109 | 8.2 | 80 | 10.3 | 87 | 10.2 | |
Nonsmoker | 807 | 68.3 | 1041 | 78.3 | 544 | 70.0 | 690 | 80.6 | |
Smoker | 374 | 31.7 | 288 | 21.7 | 233 | 30.0 | 166 | 19.4 | |
Iodine replete | Total | 3097 | 100.0 | 2353 | 100.0 | 1820 | 100.0 | 1403 | 100.0 |
Age: 12-19 years | 615 | 19.9 | 450 | 19.1 | 371 | 20.4 | 270 | 19.2 | |
Age: 20-64 years | 1859 | 60.0 | 142 | 62.6 | 1092 | 60.0 | 880 | 62.7 | |
Age: >= 65 years | 623 | 20.1 | 431 | 18.3 | 357 | 19.6 | 253 | 18.0 | |
Non-Hispanic White | 1398 | 45.1 | 943 | 40.1 | 778 | 42.7 | 557 | 39.7 | |
Non-Hispanic Black | 615 | 19.9 | 515 | 21.9 | 385 | 21.2 | 319 | 22.7 | |
Mexican American | 552 | 17.8 | 448 | 19.0 | 318 | 17.5 | 245 | 17.5 | |
Other Hispanics | 324 | 10.5 | 292 | 12.4 | 160 | 8.8 | 163 | 11.6 | |
Other Race/ethnicities | 208 | 6.7 | 155 | 6.6 | 80 | 4.4 | 119 | 8.5 | |
Nonsmoker | 2208 | 71.3 | 1925 | 81.8 | 1351 | 74.2 | 1154 | 82.3 | |
Smoker | 829 | 26.8 | 428 | 18.2 | 469 | 25.8 | 249 | 17.7 |