Table 3.3.a. Serum total iron-binding capacity: Total population
Geometric mean and selected percentiles of serum concentrations (in μg/dL) for the total U.S. population,aged 1 year and older, National Health and Nutrition Examination Survey, 1999–2000.
Table 3.3.b. Serum total iron-binding capacity: Mexican Americans
Geometric mean and selected percentiles of serum concentrations (in μg/dL) for Mexican Americans in the U.S.population, aged 1 year and older, National Health and Nutrition Examination Survey, 1999–2000.
Table 3.3.c. Serum total iron-binding capacity: Non-Hispanic blacks
Geometric mean and selected percentiles of serum concentrations (in μg/dL) for non-Hispanic blacks in the U.S.population, aged 1 year and older, National Health and Nutrition Examination Survey, 1999–2000.
Geometric mean (95% conf. interval)
Selected percentiles (95% conf. interval)
Sample size
10th
50th
90th
Males and Females
Total, 1 year and older
354
(349-359)
287
(282-293)
354
(346-360)
435
(427-443)
1774
1–5 years
370
(363-377)
315
(306-334)
365
(360-375)
435
(415-455)
172
6–11 years
366
(362-371)
316
(303-327)
367
(360-375)
427
(418-434)
257
12–19 years
374
(368-379)
312
(301-321)
375
(370-380)
447
(432-460)
582
20–39 years
356
(346-366)
288
(273-301)
346
(341-360)
444
(428-475)
273
40–59 years
342
(332-353)
276
(262-286)
346
(331-359)
426
(409-443)
249
60 years and older
323
(315-331)
259
(242-271)
322
(315-330)
401
(380-435)
241
Males
Total, 1 year and older
342
(337-348)
283
(266-291)
344
(340-349)
414
(407-421)
868
1–5 years
368
(358-378)
320†
(295-340)
367
(359-381)
416†
(401-435)
93
6–11 years
365
(358-372)
318
(306-328)
364
(355-374)
423
(409-431)
126
12–19 years
365
(360-371)
307
(293-317)
369
(360-376)
432
(416-450)
299
20–39 years
331
(320-342)
265
(253-288)
331
(314-344)
401
(367-428)
117
40–59 years
333
(319-347)
266
(222-296)
333
(313-362)
405
(384-423)
120
60 years and older
324
(317-331)
259
(232-282)
325
(313-338)
397
(375-421)
113
Females
Total, 1 year and older
364
(359-370)
290
(283-298)
364
(354-375)
447
(441-457)
906
1–5 years
372
(360-384)
315†
(286-334)
362
(351-382)
475†
(415-481)
79
6–11 years
368
(359-376)
311
(295-329)
371
(353-384)
432
(417-443)
131
12–19 years
382
(374-391)
321
(304-328)
382
(372-390)
456
(433-487)
283
20–39 years
379
(370-387)
309
(293-319)
379
(362-398)
478
(436-496)
156
40–59 years
351
(337-365)
275
(262-296)
352
(338-368)
442
(414-448)
129
60 years and older
323
(310-336)
254
(235-276)
321
(306-333)
406
(375-450)
128
† Estimate is subject to greater uncertainty due to small cell size.
Table 3.3.d. Serum total iron-binding capacity: Non-Hispanic whites
Geometric mean and selected percentiles of serum concentrations (in μg/dL) for non-Hispanic whites in the U.S.population, aged 1 year and older, National Health and Nutrition Examination Survey, 1999–2000.
Geometric mean (95% conf. interval)
Selected percentiles (95% conf. interval)
Sample size
10th
50th
90th
Males and Females
Total, 1 year and older
367
(361-373)
300
(294-307)
367
(359-375)
448
(441-454)
2630
1–5 years
368
(349-387)
305
(265-331)
377
(351-394)
442
(424-451)
168
6–11 years
372
(363-382)
313
(304-321)
372
(359-388)
442
(413-467)
191
12–19 years
379
(368-391)
311
(293-328)
384
(374-395)
461
(448-474)
418
20–39 years
367
(362-371)
299
(291-307)
365
(359-374)
450
(442-463)
608
40–59 years
369
(362-376)
302
(294-314)
367
(354-379)
444
(433-458)
494
60 years and older
357
(351-362)
288
(284-293)
358
(349-368)
438
(427-454)
751
Males
Total, 1 year and older
358
(350-366)
295
(286-302)
357
(350-366)
433
(419-442)
1306
1–5 years
370
(355-386)
301†
(253-331)
379
(348-398)
446†
(411-473)
90
6–11 years
364
(345-384)
304†
(269-326)
367
(352-388)
426†
(397-475)
101
12–19 years
372
(362-384)
310
(285-332)
377
(361-385)
447
(436-464)
213
20–39 years
351
(342-360)
296
(282-304)
352
(345-362)
418
(401-442)
264
40–59 years
364
(355-372)
301
(290-319)
362
(352-370)
426
(419-442)
253
60 years and older
347
(339-356)
284
(271-289)
348
(338-358)
434
(414-447)
385
Females
Total, 1 year and older
376
(370-382)
306
(300-311)
378
(370-386)
461
(453-471)
1324
1–5 years
365
(338-395)
304†
(201-336)
372
(334-401)
436†
(398-457)
78
6–11 years
382
(374-391)
317†
(313-338)
374
(370-393)
444†
(427-467)
90
12–19 years
387
(375-400)
311
(295-335)
391
(378-403)
471
(450-479)
205
20–39 years
383
(375-391)
307
(303-316)
383
(367-401)
478
(454-495)
344
40–59 years
374
(365-384)
302
(289-317)
376
(355-389)
454
(440-479)
241
60 years and older
365
(360-370)
293
(287-307)
369
(359-376)
450
(424-471)
366
† Estimate is subject to greater uncertainty due to small cell size.
Table 3.3.a. Serum total iron-binding capacity: Total population
Geometric mean and selected percentiles of serum concentrations (in μg/dL) for the total U.S. population,aged 1 year and older, National Health and Nutrition Examination Survey, 1999–2000.
Geometric mean (95% conf. interval)
Selected percentiles (95% conf. interval)
Sample size
10th
50th
90th
Males and Females
Total, 1 year and older
366
(360-371)
297
(292-304)
367
(359-374)
447
(441-453)
7847
1–5 years
371
(359-383)
309
(286-322)
374
(361-384)
446
(434-454)
699
6–11 years
369
(361-378)
312
(295-320)
372
(361-380)
438
(423-444)
883
12–19 years
383
(374-391)
312
(301-328)
385
(377-392)
461
(451-471)
2124
20–39 years
365
(359-371)
299
(289-306)
363
(357-371)
450
(446-459)
1468
40–59 years
364
(359-370)
298
(291-305)
364
(354-373)
441
(433-453)
1195
60 years and older
353
(347-358)
284
(276-290)
355
(347-361)
437
(424-450)
1478
Males
Total, 1 year and older
356
(349-364)
294
(287-300)
358
(351-365)
431
(421-438)
3860
1–5 years
375
(363-387)
306
(276-327)
379
(363-390)
449
(429-477)
385
6–11 years
364
(351-377)
304
(281-323)
366
(357-381)
426
(408-442)
460
12–19 years
374
(366-383)
313
(297-329)
379
(367-386)
448
(436-461)
1076
20–39 years
349
(341-357)
293
(282-298)
350
(342-358)
416
(402-432)
631
40–59 years
357
(350-364)
294
(289-302)
357
(351-365)
425
(409-436)
567
60 years and older
345
(337-353)
283
(269-288)
348
(338-357)
431
(409-446)
741
Females
Total, 1 year and older
375
(370-381)
305
(298-309)
377
(369-383)
460
(454-465)
3987
1–5 years
366
(352-381)
307
(271-321)
369
(351-386)
439
(424-447)
314
6–11 years
375
(367-383)
312
(305-320)
374
(370-387)
441
(427-453)
423
12–19 years
391
(382-402)
312
(302-335)
393
(383-401)
475
(456-491)
1048
20–39 years
382
(375-390)
308
(303-316)
383
(374-397)
477
(463-485)
837
40–59 years
371
(365-378)
300
(290-310)
373
(360-384)
450
(442-466)
628
60 years and older
359
(354-364)
289
(282-296)
361
(354-371)
439
(424-457)
737
BACK
Table 3.3.b. Serum total iron-binding capacity: Mexican Americans
Geometric mean and selected percentiles of serum concentrations (in μg/dL) for Mexican Americans in the U.S.population, aged 1 year and older, National Health and Nutrition Examination Survey, 1999–2000.
Geometric mean (95% conf. interval)
Selected percentiles (95% conf. interval)
Sample size
10th
50th
90th
Males and Females
Total, 1 year and older
373
(363-384)
303
(288-314)
375
(366-385)
455
(438-478)
2707
1–5 years
378
(370-387)
316
(303-323)
377
(368-390)
453
(444-476)
274
6–11 years
379
(371-388)
320
(308-327)
385
(372-395)
441
(433-451)
361
12–19 years
396
(380-413)
328
(316-336)
395
(386-408)
486
(447-551)
938
20–39 years
370
(357-384)
299
(277-319)
375
(354-387)
457
(426-485)
407
40–59 years
365
(359-370)
291
(275-308)
367
(358-372)
439
(431-476)
344
60 years and older
345
(334-357)
277
(263-290)
350
(338-363)
415
(405-434)
383
Males
Total, 1 year and older
365
(356-375)
301
(282-314)
370
(357-380)
437
(427-449)
1345
1–5 years
382
(370-394)
318
(299-329)
387
(368-396)
456
(436-492)
150
6–11 years
382
(371-393)
324
(313-337)
386
(366-403)
441
(425-452)
198
12–19 years
383
(374-392)
319
(304-330)
388
(381-395)
460
(448-469)
480
20–39 years
359
(344-374)
300
(275-319)
361
(348-380)
428
(411-442)
170
40–59 years
353
(345-361)
281
(270-305)
357
(347-367)
417
(403-437)
152
60 years and older
339
(327-352)
276
(250-288)
345
(324-362)
409
(383-434)
195
Females
Total, 1 year and older
382
(370-395)
308
(293-318)
384
(373-393)
476
(449-504)
1362
1–5 years
374
(360-389)
316
(301-334)
368
(355-392)
449
(422-473)
124
6–11 years
376
(368-384)
315
(305-325)
383
(370-391)
449
(430-456)
163
12–19 years
409
(383-437)
337
(325-345)
405
(384-428)
529
(436-579)
458
20–39 years
384
(366-402)
301
(275-325)
383
(371-404)
485
(452-526)
237
40–59 years
376
(365-388)
299
(284-311)
374
(361-390)
475
(438-496)
192
60 years and older
351
(337-366)
276
(245-304)
354
(343-365)
421
(408-451)
188
BACK
Table 3.3.c. Serum total iron-binding capacity: Non-Hispanic blacks
Geometric mean and selected percentiles of serum concentrations (in μg/dL) for non-Hispanic blacks in the U.S.population, aged 1 year and older, National Health and Nutrition Examination Survey, 1999–2000.
Geometric mean (95% conf. interval)
Selected percentiles (95% conf. interval)
Sample size
10th
50th
90th
Males and Females
Total, 1 year and older
354
(349-359)
287
(282-293)
354
(346-360)
435
(427-443)
1774
1–5 years
370
(363-377)
315
(306-334)
365
(360-375)
435
(415-455)
172
6–11 years
366
(362-371)
316
(303-327)
367
(360-375)
427
(418-434)
257
12–19 years
374
(368-379)
312
(301-321)
375
(370-380)
447
(432-460)
582
20–39 years
356
(346-366)
288
(273-301)
346
(341-360)
444
(428-475)
273
40–59 years
342
(332-353)
276
(262-286)
346
(331-359)
426
(409-443)
249
60 years and older
323
(315-331)
259
(242-271)
322
(315-330)
401
(380-435)
241
Males
Total, 1 year and older
342
(337-348)
283
(266-291)
344
(340-349)
414
(407-421)
868
1–5 years
368
(358-378)
320†
(295-340)
367
(359-381)
416†
(401-435)
93
6–11 years
365
(358-372)
318
(306-328)
364
(355-374)
423
(409-431)
126
12–19 years
365
(360-371)
307
(293-317)
369
(360-376)
432
(416-450)
299
20–39 years
331
(320-342)
265
(253-288)
331
(314-344)
401
(367-428)
117
40–59 years
333
(319-347)
266
(222-296)
333
(313-362)
405
(384-423)
120
60 years and older
324
(317-331)
259
(232-282)
325
(313-338)
397
(375-421)
113
Females
Total, 1 year and older
364
(359-370)
290
(283-298)
364
(354-375)
447
(441-457)
906
1–5 years
372
(360-384)
315†
(286-334)
362
(351-382)
475†
(415-481)
79
6–11 years
368
(359-376)
311
(295-329)
371
(353-384)
432
(417-443)
131
12–19 years
382
(374-391)
321
(304-328)
382
(372-390)
456
(433-487)
283
20–39 years
379
(370-387)
309
(293-319)
379
(362-398)
478
(436-496)
156
40–59 years
351
(337-365)
275
(262-296)
352
(338-368)
442
(414-448)
129
60 years and older
323
(310-336)
254
(235-276)
321
(306-333)
406
(375-450)
128
† Estimate is subject to greater uncertainty due to small cell size.
BACK
Table 3.3.d. Serum total iron-binding capacity: Non-Hispanic whites
Geometric mean and selected percentiles of serum concentrations (in μg/dL) for non-Hispanic whites in the U.S.population, aged 1 year and older, National Health and Nutrition Examination Survey, 1999–2000.
Geometric mean (95% conf. interval)
Selected percentiles (95% conf. interval)
Sample size
10th
50th
90th
Males and Females
Total, 1 year and older
367
(361-373)
300
(294-307)
367
(359-375)
448
(441-454)
2630
1–5 years
368
(349-387)
305
(265-331)
377
(351-394)
442
(424-451)
168
6–11 years
372
(363-382)
313
(304-321)
372
(359-388)
442
(413-467)
191
12–19 years
379
(368-391)
311
(293-328)
384
(374-395)
461
(448-474)
418
20–39 years
367
(362-371)
299
(291-307)
365
(359-374)
450
(442-463)
608
40–59 years
369
(362-376)
302
(294-314)
367
(354-379)
444
(433-458)
494
60 years and older
357
(351-362)
288
(284-293)
358
(349-368)
438
(427-454)
751
Males
Total, 1 year and older
358
(350-366)
295
(286-302)
357
(350-366)
433
(419-442)
1306
1–5 years
370
(355-386)
301†
(253-331)
379
(348-398)
446†
(411-473)
90
6–11 years
364
(345-384)
304†
(269-326)
367
(352-388)
426†
(397-475)
101
12–19 years
372
(362-384)
310
(285-332)
377
(361-385)
447
(436-464)
213
20–39 years
351
(342-360)
296
(282-304)
352
(345-362)
418
(401-442)
264
40–59 years
364
(355-372)
301
(290-319)
362
(352-370)
426
(419-442)
253
60 years and older
347
(339-356)
284
(271-289)
348
(338-358)
434
(414-447)
385
Females
Total, 1 year and older
376
(370-382)
306
(300-311)
378
(370-386)
461
(453-471)
1324
1–5 years
365
(338-395)
304†
(201-336)
372
(334-401)
436†
(398-457)
78
6–11 years
382
(374-391)
317†
(313-338)
374
(370-393)
444†
(427-467)
90
12–19 years
387
(375-400)
311
(295-335)
391
(378-403)
471
(450-479)
205
20–39 years
383
(375-391)
307
(303-316)
383
(367-401)
478
(454-495)
344
40–59 years
374
(365-384)
302
(289-317)
376
(355-389)
454
(440-479)
241
60 years and older
365
(360-370)
293
(287-307)
369
(359-376)
450
(424-471)
366
† Estimate is subject to greater uncertainty due to small cell size.
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