Table 3.
Prevalence of metal implants among US adults 40 years or older.
| NHANES 2015–2016 | NHANES 2017–March 2020 | ||||
|---|---|---|---|---|---|
| Population | Unweighted sample size | Prevalence % (95% CI) | Unweighted sample size | Prevalence % (95% CI) | P-value |
| Overall | 3736 | 27.23 (23.61, 30.85) | 6387 | 31.53 (29.76, 33.30) | 0.049 |
| Age | |||||
| 40–59 years | 1853 | 19.50 (15.69, 23.31) | 2993 | 21.21 (19.06, 23.37) | 0.456 |
| 60 years and older | 1883 | 37.19 (32.77, 41.60) | 3394 | 43.40 (41.04, 45.76) | 0.022 |
| Sex | |||||
| Men | 1796 | 25.89 (22.04, 29.74) | 3154 | 32.05 (29.33, 34.78) | 0.017 |
| Women | 1940 | 28.43 (23.84, 33.02) | 3233 | 31.06 (28.96, 33.16) | 0.322 |
| Race/ethnicity | |||||
| White | 1277 | 29.76 (25.46, 34.05) | 2381 | 36.00 (33.06, 38.94) | 0.027 |
| Black | 795 | 20.71 (18.02, 23.39) | 1710 | 20.54 (18.34, 22.74) | 0.926 |
| Mexican American | 622 | 19.07 (16.69, 21.45) | 647 | 23.64 (21.36, 25.93) | 0.011 |
| Other | 1042 | 23.76 (18.32, 29.19) | 1649 | 23.46 (20.01, 26.90) | 0.927 |
CI, confidence interval; NHANES, National Health and Nutrition Examination Survey.