Table 3: Adjusted geometric means with 95% confidence intervals by gender, race/ethnicity, smoking status, and Iodine Sufficiency Status (IOS) for Thyroid Stimulating Hormone (TSH), Free Triiodothyronine (FT3), Free Thyroxin (FT4), Total Triiodothyronine (TT3), Total Thyroxin (TT4), and Thyroglobulin (TGN) when association with blood lead was investigated. Data from National Health and Nutrition Examination Survey 2007-2012.
Gender: IOS | Category | TSH in μIU/mL | FT3 in pg/mL | FT4 in ng/dL | TT3 in ng/dL | TT4 in μg/mL | TGN in ng/mL |
---|---|---|---|---|---|---|---|
Male: IOD* | 12-19 years (A12) | 1.43 (1.26-1.63) | 3.68 (3.6-3.76) | 0.804 (0.772-0.837) | 132.81 (128.7-137.05) | 7.48 (7.2-7.78) | 10.96 (9.17-13.11) |
20-64 years (A20) | 1.41 (1.32-1.5) | 3.37 (3.33-3.4) | 0.803 (0.788-0.819) | 116.86 (114.23-119.54) | 7.59 (7.46-7.73) | 10.44 (9.34-11.67) | |
≥ 65 years (A65) | 1.44 (1.13-1.83) | 3.09 (2.98-3.21) | 0.778 (0.735-0.825) | 111.07 (106.1-116.28) | 7.53 (7.17-7.91) | 14.62 (10.95-19.51) | |
Non-Hispanic White (NHW) | 1.48 (1.33-1.64) | 3.32 (3.25-3.39) | 0.782 (0.765-0.799) | 118.59 (115.6-121.65) | 7.31 (7.13-7.5) | 10.32 (9.14-11.66) | |
Non-Hispanic Black (NHB) | 1.32 (1.19-1.45) | 3.3 (3.23-3.36) | 0.762 (0.735-0.79) | 115.13 (112.05-118.3) | 7.2 (7.02-7.38) | 13.35 (11.75-15.18) | |
Mexican American (MA) | 1.37 (1.19-1.57) | 3.43 (3.35-3.52) | 0.821 (0.782-0.862) | 123.2 (118-128.62) | 7.71 (7.47-7.96) | 9.76 (8.3-11.46) | |
Other Hispanics (OHISP) | 1.47 (1.25-1.72) | 3.41 (3.32-3.51) | 0.794 (0.751-0.84) | 122.64 (115.41-130.32) | 7.58 (7.25-7.93) | 10.66 (8.64-13.14) | |
Others (OTH) | 1.51 (1.26-1.8) | 3.4 (3.33-3.48) | 0.818 (0.782-0.855) | 120.14 (116.03-124.39) | 7.89 (7.63-8.17) | 16.46 (10.82-25.03) | |
Nonsmokers (NSM) | 1.5 (1.36-1.66) | 3.4 (3.36-3.44) | 0.788 (0.769-0.807) | 120.78 (118.63-122.97) | 7.54 (7.37-7.7) | 10.33 (9.21-11.57) | |
Smokers (SM) | 1.35 (1.22-1.51) | 3.35 (3.25-3.45) | 0.802 (0.773-0.833) | 119.03 (114.95-123.26) | 7.53 (7.32-7.75) | 13.65 (11.23-16.58) | |
SSD** | A12 > A20 > A65 (p < 0.01), NHW < MA (p = 0.02), NHB < MA (p < 0.01), NHB < OHISP (p = 0.01), NHB < OTH (p = 0.02) | NHW < OTH (p = 0.03), NHB < MA (p = 0.01), NHB < OTH (p < 0.01) | A12 > A20 (p < 0.01), A12 > A65 (p < 0.01), NHB < MA (p < 0.01), NHB < OHISP (p = 0.04), NHB < OTH (p = 0.03) | NHW < MA (p < 0.01), NHW < OTH (p < 0.01), NHB < MA (p < 0.01), NHB < OHISP (p = 0.04), NHB < OTH (p < 0.01) | A20 < A65 (p < 0.01), NHW < NHB (p = 0.01), NHW < OTH (p = 0.02), NHB > MA (p < 0.01), NHB < OTH (p = 0.03), MA < OTH (p < 0.01), OHISP < OTH (p = 0.03), NSM < SM (p < 0.01) | ||
Male: IOR* | 12-19 years (A12) | 1.43 (1.33-1.53) | 3.68 (3.62-3.74) | 0.799 (0.772-0.827) | 134.6 (130.72-138.59) | 7.51 (7.29-7.74) | 9.21 (8.27-10.26) |
20-64 years (A20) | 1.34 (1.28-1.41) | 3.34 (3.31-3.38) | 0.79 (0.776-0.805) | 116.41 (114.57-118.28) | 7.57 (7.46-7.69) | 9.1 (8.64-9.59) | |
≥ 65 years (A65) | 1.45 (1.32-1.6) | 3.06 (3.01-3.11) | 0.803 (0.781-0.825) | 103.81 (100.91-106.8) | 7.91 (7.67-8.15) | 9.7 (8.3-11.33) | |
Non-Hispanic White (NHW) | 1.64 (1.58-1.71) | 3.32 (3.29-3.35) | 0.788 (0.771-0.805) | 116.52 (114.15-118.93) | 7.33 (7.21-7.45) | 9.48 (9-9.98) | |
Non-Hispanic Black (NHB) | 1.24 (1.17-1.32) | 3.31 (3.27-3.36) | 0.783 (0.765-0.802) | 115.94 (112.5-119.49) | 7.52 (7.31-7.73) | 12.64 (11.48-13.92) | |
Mexican American (MA) | 1.35 (1.24-1.46) | 3.38 (3.33-3.43) | 0.787 (0.759-0.816) | 118.82 (115.97-121.74) | 7.79 (7.58-7.99) | 7.82 (6.82-8.97) | |
Other Hispanics (OHISP) | 1.38 (1.27-1.49) | 3.43 (3.35-3.51) | 0.796 (0.768-0.825) | 120.52 (116.91-124.25) | 7.79 (7.53-8.06) | 8.89 (7.72-10.24) | |
Others (OTH) | 1.45 (1.29-1.62) | 3.31 (3.21-3.42) | 0.834 (0.809-0.859) | 116.3 (111.69-121.1) | 7.9 (7.62-8.19) | 8.5 (7.21-10.01) | |
Nonsmokers (NSM) | 1.52 (1.44-1.61) | 3.35 (3.32-3.38) | 0.793 (0.78-0.807) | 116.45 (114.73-118.19) | 7.63 (7.52-7.75) | 8.48 (7.95-9.04) | |
Smokers (SM) | 1.3 (1.22-1.38) | 3.35 (3.3-3.4) | 0.801 (0.781-0.822) | 118.77 (115.05-122.62) | 7.69 (7.48-7.91) | 10.28 (9.21-11.47) | |
SSD** | NHW > NHB (p < 0.01), NHW > MA (p < 0.01), NHW > OHISP (p < 0.01), NHW > OTH (p = 0.02), NHB < OHISP (p = 0.04), NHB < OTH (p = 0.02), NSM > SM (p < 0.01) | A12 > A20 > A65 (p < 0.01), NHW < MA (p = 0.04), NHW < OTH (p = 0.01), NHB < MA (p = 0.03), NHB < OHISP (p = 0.01) | NHW < OTH (p < 0.01), NHB < OTH (p < 0.01), MA < OTH (p < 0.01), OHISP < OTH (p = 0.02) | A12 > A20 > A65 (p < 0.01), NHB < MA (p = 0.03) | A12 < A65 (p = 0.01), A20 < A65 (p < 0.01), NHW < MA (p < 0.01), NHW < OHISP (p < 0.01), NHW < OTH (p < 0.01), NHB < MA (p = 0.01), NHB < OTH (p = 0.02) | NHW < NHB (p < 0.01), NHW > MA (p = 0.01), NHB > MA (p < 0.01), NHB > OHISP (p < 0.01), NHB > OTH (p < 0.01), NSM < SM (p < 0.01) | |
Female: IOD* | 12-19 years (A12) | 1.44 (1.25-1.66) | 3.45 (3.37-3.54) | 0.796 (0.768-0.824) | 122.7 (117.49-128.13) | 7.72 (7.45-7.99) | 10.27 (8.66-12.19) |
20-64 years (A20) | 1.33 (1.23-1.43) | 3.15 (3.09-3.2) | 0.785 (0.766-0.804) | 114.07 (111.44-116.76) | 7.8 (7.65-7.95) | 12.8 (11.63-14.09) | |
≥ 65 years (A65) | 1.33 (1.15-1.54) | 3.03 (2.93-3.14) | 0.806 (0.778-0.836) | 110.08 (104.1-116.41) | 7.72 (7.34-8.13) | 16.15 (12.18-21.41) | |
Non-Hispanic White (NHW) | 1.54 (1.42-1.68) | 3.2 (3.16-3.24) | 0.783 (0.767-0.799) | 116.29 (113.65-118.98) | 7.71 (7.51-7.91) | 12.62 (11.47-13.89) | |
Non-Hispanic Black (NHB) | 1.17 (1.03-1.33) | 3.18 (3.12-3.24) | 0.793 (0.772-0.814) | 114.05 (110.51-117.71) | 7.64 (7.43-7.86) | 17.86 (15.68-20.34) | |
Mexican American (MA) | 1.46 (1.28-1.66) | 3.25 (3.16-3.34) | 0.793 (0.764-0.824) | 118.22 (113.66-122.97) | 7.86 (7.57-8.17) | 10.37 (8.23-13.06) | |
Other Hispanics (OHISP) | 1.32 (1.12-1.57) | 3.22 (3.11-3.33) | 0.789 (0.759-0.821) | 117.37 (110.39-124.8) | 7.64 (7.04-8.28) | 11.23 (9.25-13.64) | |
Others (OTH) | 1.36 (1.12-1.66) | 3.18 (3.06-3.31) | 0.821 (0.775-0.87) | 111.66 (106.62-116.94) | 7.88 (7.51-8.28) | 13.36 (10.45-17.07) | |
Nonsmokers (NSM) | 1.42 (1.31-1.54) | 3.2 (3.14-3.25) | 0.799 (0.782-0.815) | 116.21 (113.28-119.21) | 7.97 (7.81-8.14) | 11.01 (9.88-12.26) | |
Smokers (SM) | 1.31 (1.16-1.48) | 3.22 (3.13-3.3) | 0.792 (0.768-0.818) | 114.79 (110.53-119.21) | 7.53 (7.19-7.87) | 15.01 (12.67-17.79) | |
SSD** | NHW > NHB (p < 0.01), NHB < MA (p = 0.01) | A12 > A20 > A65 (p ≤ 0.03) | A12 > A20 (p < 0.01), A12 > A65 (p < 0.01) | A12 < A20 (p = 0.02), A12 < A65 (p = 0.01), NHW < NHB (p < 0.01), NHB > MA (p < 0.01), NHB > OHISP (p < 0.01), NHB < OTH (p = 0.03), NSM < SM (p < 0.01) | |||
Female: IOR* | 12-19 years (A12) | 1.39 (1.27-1.52) | 3.3 (3.23-3.37) | 0.799 (0.773-0.826) | 125.84 (120.55-131.36) | 7.82 (7.62-8.04) | 11.34 (9.57-13.44) |
20-64 years (A20) | 1.28 (1.21-1.35) | 3.15 (3.11-3.18) | 0.775 (0.76-0.79) | 111.53 (108.87-114.27) | 7.88 (7.74-8.03) | 11.62 (10.67-12.65) | |
≥ 65 years (A65) | 1.48 (1.32-1.66) | 3.02 (2.96-3.08) | 0.762 (0.733-0.792) | 104.66 (101.45-107.97) | 8.26 (7.97-8.56) | 12.04 (10.55-13.74) | |
Non-Hispanic White (NHW) | 1.57 (1.49-1.66) | 3.2 (3.17-3.23) | 0.771 (0.754-0.789) | 116.57 (114.43-118.75) | 7.79 (7.66-7.92) | 11.9 (11.12-12.73) | |
Non-Hispanic Black (NHB) | 1.19 (1.11-1.27) | 3.09 (3.05-3.14) | 0.781 (0.758-0.804) | 110.98 (106.96-115.14) | 7.8 (7.58-8.02) | 16.74 (15.15-18.5) | |
Mexican American (MA) | 1.41 (1.3-1.53) | 3.19 (3.14-3.24) | 0.798 (0.775-0.822) | 113.94 (109.04-119.06) | 8.21 (7.95-8.48) | 8.2 (7.01-9.59) | |
Other Hispanics (OHISP) | 1.39 (1.27-1.53) | 3.15 (3.09-3.21) | 0.771 (0.741-0.803) | 114.69 (111.03-118.46) | 8 (7.67-8.33) | 11.88 (9.98-14.14) | |
Others (OTH) | 1.37 (1.19-1.58) | 3.14 (3.06-3.22) | 0.771 (0.743-0.8) | 112.29 (106.65-118.23) | 8.15 (7.87-8.44) | 11.13 (9.09-13.63) | |
Nonsmokers (NSM) | 1.48 (1.39-1.57) | 3.16 (3.13-3.18) | 0.793 (0.78-0.807) | 113.06 (110.99-115.16) | 8.03 (7.91-8.14) | 10.01 (9.36-10.71) | |
Smokers (SM) | 1.29 (1.19-1.4) | 3.15 (3.11-3.2) | 0.764 (0.739-0.79) | 114.3 (110.65-118.07) | 7.95 (7.74-8.16) | 13.59 (11.68-15.82) | |
SSD** | A20 < A65 (p = 0.02), NHW > NHB (p < 0.01), NHW > MA (p = 0.02), NHW > OHISP (p = 0.03), NHW > OTH (p = 0.03), NHB < MA (p < 0.01), NHB < OHISP (p < 0.01), NSM > SM (p < 0.01) | A12 > A20 > A65 (p < 0.01), NHW > NHB (p < 0.01), NHB < MA (p < 0.01) | A12 > A20 > A65 (p < 0.01), NHW > NHB (p = 0.01) | A12 < A65 (p = 0.02), A20 < A65 (p = 0.01), NHW < MA (p < 0.01), NHW < OTH (p = 0.03), NHB < MA (p = 0.01), NHB < OTH (p = 0.03), | NHW < NHB (p < 0.01), NHW < MA (p < 0.01), NHB > MA (p < 0.01), NHB > OHISP (p < 0.01), NHB > OTH (p < 0.01), MA < OHISP (p < 0.01), MA < OTH (p < 0.01), NSM < SM (p < 0.01) |
*IOD = Iodine Deficient or urine iodine < 100 ng/mL; IOR=Iodine Replete or urine iodine ≥ 100 ng/mL; **SSD = Statistically Significant Differences.