TABLES OF BONE AREA AND BONE MINERAL COMPOSITION FOR NAVAJO WOMEN AND MEN AS COMPARED TO NON-HISPANIC WHITE WOMEN FROM NHANES DATA (2005–2008)^a

Bone Mineral Concentration
Women		L1–L4 Spine			Femoral Neck			Total Hip
BMI	Age	NHANES	Navajo	p value	NHANES	Navajo	p value	NHANES	Navajo	p value
BMI <25	20–29 years	59.4[57.6–61.2]	41.4[38.5–44.2]	<.001	4.1[4–4.2]	3.6[3.4–3.8]	<.001	29.8[28.8–30.7]	26.8[25.2–28.4]	.002
	30–39 years	61[58.7–63.3]	44.6[39.1–50.2]	<.001	3.9[3.8–4]	3.7[3.3–4]	0.167	29.2[28–30.4]	29.4[25–33.7]	.397
	40–49 years	60.8[58.6–63]	45.5[41.3–49.7]	<.001	3.8[3.7–3.8]	3.4[3.3–3.5]	<.001	29.1[28.1–30.1]	27.2[25.1–29.4]	.093
	50–59 years	54.8[53–56.6]	43.8[39.6–48.1]	<.001	3.5[3.3–3.6]	3.5[3.3–3.7]	0.384	27.5[26.4–28.6]	28.2[26.2–30.1]	.329
	60 years and older	50.9[49.3–52.6]	33.6[26.8–40.4]	<.001	3.2[3.1–3.2]	2.9[2.7–3.2]	0.016	25.9[25.3–26.5]	22.9[19.6–26.1]	.037
25≤ BMI <30	20–29 years	65.6[63.2–68]	44.6[41.8–47.4]	<.001	4.5[4.3–4.6]	3.9[3.8–4]	<.001	31.9[30.8–32.9]	28.1[26.9–29.4]	<.001
	30–39 years	63.2[60.8–65.6]	49.8[47–52.6]	<.001	4.2[4.1–4.4]	4[3.8–4.2]	0.035	31.4[30–32.9]	32[30.4–33.6]	.345
	40–49 years	59.3[57.2–61.3]	48.2[45.5–50.9]	<.001	3.9[3.8–4]	3.8[3.7–4]	0.267	29.8[29–30.5]	30.1[28.8–31.4]	.363
	50–59 years	56.5[53.9–59.1]	41.3[38.9–43.7]	<.001	3.8[3.7–3.9]	3.6[3.4–3.7]	0.052	29.2[28.2–30.2]	29.6[27.9–31.2]	.365
	60 years and older	53.9[52.5–55.2]	37.1[34.6–39.7]	<.001	3.5[3.5–3.6]	3.2[3–3.4]	<.001	28.4[27.8–29.1]	26.1[24.8–27.5]	.004
BMI >=30	20–29 years	62.6[60.7–64.5]	48.9[46.7–51.1]	<.001	4.7[4.4–5]	4.5[4.3–4.6]	0.158	33.9[32.4–35.5]	33.6[32.3–35]	.381
	30–39 years	61.3[59.6–63]	50.9[49.1–52.7]	<.001	4.4[4.3–4.5]	4.3[4.2–4.5]	0.279	32.2[31.1–33.3]	34.2[33.1–35.3]	.014
	40–49 years	64.3[62.3–66.4]	51.3[49.3–53.2]	<.001	4.5[4.3–4.6]	4.2[4.1–4.3]	0.003	34.5[33.3–35.8]	34.3[33.4–35.2]	.375
	50–59 years	60[57.7–62.3]	44.9[42.4–47.4]	<.001	4.1[3.9–4.3]	3.8[3.6–3.9]	0.003	32.9[31.5–34.3]	31.3[30.2–32.4]	.083
	60 years and older	55.9[53.9–57.9]	40.7[38.3–43.2]	<.001	3.8[3.7–3.9]	3.4[3.3–3.6]	<.001	30.6[29.9–31.3]	29.1[27.5–30.7]	.095

Bone Mineral Concentration
Men		L1–L4 Spine			Femoral Neck			Total Hip
BMI	Age	NHANES	Navajo	p value	NHANES	Navajo	p value	NHANES	Navajo	p value
BMI <25	20–29 years	71[69.2–72.8]	49.6[46.3–52.8]	<.001	5.2[5–5.3]	4.4[4.2–4.6]	<.001	42.7[41.9–43.6]	37.2[35.4–39]	<.001
	30–39 years	68.3[66.1–70.6]	48.3[42.4–54.1]	<.001	4.6[4.5–4.8]	4.2[3.7–4.7]	0.071	39.2[37.7–40.7]	36.5[32–41.1]	.180
	40–49 years	68.7[65.8–71.5]	53.5[47.3–59.8]	<.001	4.6[4.4–4.8]	4[3.8–4.3]	0.002	41.5[39.4–43.6]	36.9[34.2–39.6]	.007
	50–59 years	70.8[67–74.5]	51.9[39.7–64.2]	<.001	4.4[4.2–4.6]	3.9[3.4–4.5]	0.033	40.8[39–42.6]	36.1[29.6–42.6]	.069
	60 years and older	71.2[68.1–74.4]	59.9[50.5–69.3]	.007	4.1[4–4.2]	4.1[3.7–4.4]	0.393	39.1[38.1–40]	40.1[34.5–45.8]	.358
25≤ BMI <30	20–29 years	72.2[69.6–74.7]	54.7[51.5–57.8]	<.001	5.3[5.1–5.5]	5[4.8–5.2]	0.034	44.8[43.3–46.4]	42.1[40–44.1]	.035
	30–39 years	74.3[71.7–76.9]	56.1[51.6–60.5]	<.001	5.1[5–5.3]	4.5[4.3–4.7]	<.001	45.3[43.7–47]	42.1[39.8–44.3]	.021
	40–49 years	74.9[72.7–77]	59.8[56.2–63.4]	<.001	5[4.9–5.1]	4.5[4.3–4.8]	<.001	45[43.8–46.2]	41.7[39.7–43.7]	.007
	50–59 years	74.5[72.6–76.5]	60.6[56–65.1]	<.001	4.8[4.6–4.9]	4.3[4.1–4.5]	<.001	44[42.9–45]	40.3[38–42.7]	.007
	60 years and older	75.6[73.3–77.9]	65.7[59.8–71.6]	.002	4.5[4.4–4.6]	4.3[4–4.5]	0.060	43.1[42.4–43.8]	42.4[39.5–45.2]	.352
BMI >=30	20–29 years	72.5[69.6–75.5]	61.4[58.7–64.2]	<.001	5.8[5.6–6]	5.5[5.3–5.7]	0.042	46.4[44.5–48.2]	45.4[43.3–47.5]	.309
	30–39 years	68.9[66.6–71.2]	62.4[59.1–65.7]	.002	5.3[5.1–5.4]	5.1[4.9–5.3]	0.192	45.8[44.1–47.5]	46.3[44.4–48.3]	.368
	40–49 years	72.8[70.2–75.4]	61.6[58.4–64.8]	<.001	5.2[5–5.3]	5[4.8–5.2]	0.132	46.5[45.3–47.7]	45.9[44.1–47.8]	.346
	50–59 years	72.4[70–74.9]	64.9[61.7–68.2]	<.001	5[4.9–5.2]	4.7[4.5–4.9]	0.004	46.5[45.4–47.7]	46.5[44.7–48.4]	.399
	60 years and older	75.5[73–78]	68[64–72]	.002	4.9[4.8–5]	4.4[4.2–4.7]	0.002	47.1[46–48.1]	44.2[41.5–46.9]	.047

Area Women		L1–L4 Spine			Femoral Neck			Total Hip
BMI	Age	NHANES	Navajo	p value	NHANES	Navajo	p value	NHANES	Navajo	p value
BMI <25	20–29 years	57.5[56.3–58.8]	46.6[45–48.2]	<.001	4.8[4.8–4.9]	4.6[4.5–4.8]	0.007	31.7[31.1–32.2]	31[30–32.1]	.238
	30–39 years	58.3[57.1–59.5]	47.5[44.1–50.9]	<.001	4.8[4.7–4.9]	4.7[4.4–4.9]	0.154	32[31.4–32.7]	32.2[30–34.5]	.393
	40–49 years	59.2[58–60.4]	48.8[46.6–51.1]	<.001	4.9[4.8–5]	4.7[4.5–4.9]	0.012	32.9[32.3–33.5]	32.4[30.6–34.2]	.340
	50–59 years	58[57–59.1]	50.3[47.9–52.7]	<.001	4.9[4.8–5]	5[4.8–5.1]	0.319	33.5[32.7–34.2]	33.9[32–35.8]	.365
	60 years and older	57.5[56.9–58.1]	48.5[44.4–52.5]	<.001	5[5–5.1]	4.9[4.7–5.1]	0.250	34.3[33.9–34.8]	33.4[31.8–35.1]	.189
25≤ BMI <30	20–29 years	59.4[57.8–60.9]	46.9[44.9–48.9]	<.001	4.9[4.8–5]	4.7[4.6–4.8]	0.012	31.8[31.2–32.5]	31[30–31.9]	.118
	30–39 years	58.6[56.9–60.3]	49[47.5–50.5]	<.001	5[4.9–5.1]	4.8[4.7–5]	0.072	32.5[31.6–33.5]	33.4[32.3–34.4]	.204
	40–49 years	57.2[56.2–58.2]	49.3[47.7–50.8]	<.001	4.8[4.8–4.9]	4.7[4.6–4.8]	0.094	31.9[31.4–32.5]	32.2[31.4–33]	.346
	50–59 years	56.7[55.7–57.8]	47.3[45.9–48.8]	<.001	5[4.9–5.1]	4.7[4.6–4.8]	<.001	32.5[31.8–33.3]	32.8[31.8–33.9]	.360
	60 years and older	57[56.2–57.8]	47.6[45.8–49.4]	<.001	5[5–5]	4.8[4.7–4.9]	0.004	34.3[33.9–34.7]	33.9[33–34.7]	.254
BMI >=30	20–29 years	56.1[55.2–57]	47.7[46.5–48.9]	<.001	4.9[4.8–5]	4.8[4.7–4.8]	0.111	32.3[31.5–33.1]	32.1[31.3–33]	.387
	30–39 years	56.3[55–57.5]	48.7[47.7–49.7]	<.001	4.9[4.8–5]	4.7[4.6–4.8]	<.001	31.7[31.1–32.3]	32.8[32.2–33.3]	.010
	40–49 years	57[56–58]	50.1[49–51.1]	<.001	4.9[4.8–4.9]	4.8[4.7–4.9]	0.066	33.1[32.5–33.6]	33.2[32.6–33.9]	.367
	50–59 years	56.6[55.5–57.7]	48.9[47.8–50]	<.001	5[4.9–5]	4.8[4.8–4.9]	0.012	33.8[33.2–34.4]	33.7[33–34.3]	.385
	60 years and older	56[55–56.9]	47.9[46.5–49.2]	<.001	5.1[5–5.1]	4.7[4.6–4.8]	<.001	34.3[34–34.7]	33.7[33–34.5]	.138

Area Men		L1–L4 Spine			Femoral Neck			Total Hip
BMI	Age	NHANES	Navajo	p value	NHANES	Navajo	p value	NHANES	Navajo	p value
BMI <25	20–29 years	68[67–68.9]	53.8[51.9–55.7]	<.001	5.6[5.5–5.7]	5.2[5.1–5.4]	<.001	41[40.4–41.7]	39.6[38.2–40.9]	.043
	30–39 years	67.7[66.5–69]	54.5[49.8–59.1]	<.001	5.6[5.5–5.7]	5.2[4.9–5.5]	0.008	41.2[40.2–42.2]	39.4[36.1–42.8]	.205
	40–49 years	68.4[67–69.8]	56.4[52.7–60]	<.001	5.7[5.6–5.8]	5.4[5.2–5.6]	0.002	43[41.8–44.1]	41.5[39.2–43.8]	.188
	50–59 years	69.6[67.4–71.8]	57[50–64.1]	<.001	5.7[5.6–5.8]	5.4[5.1–5.7]	0.008	43.1[42.1–44.2]	43.4[39.4–47.3]	.396
	60 years and older	69.7[68.6–70.9]	62.3[58.5–66.2]	<.001	5.7[5.7–5.8]	5.8[5.5–6.1]	0.367	44.4[43.8–45.1]	47.9[42.3–53.4]	.115
25≤ BMI <30	20–29 years	67.4[66.1–68.8]	56.4[54.5–58.2]	<.001	5.6[5.5–5.7]	5.3[5.2–5.4]	<.001	41.6[40.7–42.4]	40.5[39.2–41.9]	.182
	30–39 years	69[67.5–70.4]	57.4[55.2–59.6]	<.001	5.7[5.6–5.8]	5.3[5.2–5.5]	<.001	42.9[42–43.8]	41.7[39.9–43.5]	.179
	40–49 years	70.1[68.9–71.2]	60.1[58.3–61.8]	<.001	5.7[5.6–5.8]	5.3[5.2–5.5]	<.001	42.9[42.1–43.6]	42[40.8–43.2]	.178
	50–59 years	69.9[68.9–70.8]	59.7[58–61.3]	<.001	5.8[5.7–5.9]	5.3[5.2–5.5]	<.001	43.4[42.6–44.2]	42.1[40.7–43.5]	.097
	60 years and older	70.1[69.2–71]	63.1[60.2–66]	<.001	5.8[5.8–5.9]	5.4[5.3–5.6]	<.001	44.6[44.2–45.1]	44[42.3–45.8]	.312
BMI >=30	20–29 years	66.6[65.1–68.1]	58[56.6–59.5]	<.001	5.6[5.6–5.7]	5.4[5.3–5.5]	<.001	40.8[39.8–41.8]	41[39.9–42.2]	0376
	30–39 years	66.2[65–67.4]	57.9[56.1–59.8]	<.001	5.7[5.6–5.8]	5.4[5.3–5.5]	0.004	42.1[40.9–43.2]	42[40.7–43.3]	.398
	40–49 years	68[67–69]	58.9[57.5–60.4]	<.001	5.7[5.7–5.8]	5.5[5.4–5.6]	0.002	43[42.3–43.6]	42.6[41.4–43.7]	.332
	50–59 years	67.1[66–68.1]	60.3[58.5–62.1]	<.001	5.7[5.7–5.8]	5.4[5.3–5.5]	<.001	43.7[43–44.3]	43.7[42.7–44.7]	.397
	60 years and older	67.9[66.8–69]	62.2[59.9–64.5]	<.001	5.8[5.8–5.9]	5.4[5.3–5.6]	<.001	44.9[44.4–45.4]	43.9[42.5–45.4]	.164

Note:

^aThe p values are the result of the z test for mean difference.