Table 4 Subgroup analyses of the association of serum uric acid with lumbar bone mineral density, weighted.

From: No association between serum uric acid and lumbar spine bone mineral density in US adult males: a cross sectional study

Characteristics

N, unweighted

Lumber spine BMD

P-value

P for interaction

β (95%CI)

Age, years

   

0.53

 < 40

3475

− 0.005 (− 0.011, 0.001)

0.109

 

≥ 40, < 60

1956

0.001 (− 0.006, 0.008)

0.781

 

≥ 60

1273

− 0.004 (− 0.013, 0.006)

0.452

 

Race/Ethnicity

   

0.75

Non‐Hispanic White

3032

− 0.003 (− 0.008, 0.003)

0.384

 

Non‐Hispanic Black

1436

0.002 (− 0.005, 0.009)

0.572

 

Mexican American

1708

− 0.004 (− 0.011, 0.003)

0.279

 

Other race

528

− 0.006 (− 0.019, 0.007)

0.371

 

Education

   

0.76

 < High school

2186

− 0.003 (− 0.009, 0.003)

0.256

 

High school

1653

− 0.002 (− 0.009, 0.005)

0.662

 

 > High school

2856

− 0.004 (− 0.009, 0.002)

0.203

 

Physical activity

   

0.16

Sedentary

1194

− 0.006 (− 0.014, 0.002)

0.115

 

Low

1586

0.001 (− 0.006, 0.008)

0.804

 

Moderate

1058

0.004 (− 0.006, 0.013)

0.431

 

High

2173

− 0.006 (− 0.012, 0.000)

0.048

 

Smoker

   

0.59

Never

2530

− 0.003 (− 0.009, 0.003)

0.299

 

Ever

1514

0.002 (− 0.005, 0.009)

0.657

 

Current

1698

− 0.007 (− 0.014, 0.000)

0.055

 

Drinker

   

0.54

No

4002

− 0.002 (− 0.007, 0.002)

0.315

 

Yes

2408

− 0.001 (− 0.006, 0.005)

0.829

 

BMI, kg/m2

   

0.39

 < 24

1887

− 0.005 (− 0.012, 0.002)

0.149

 

≥ 24, < 28

2208

0.000 (− 0.006, 0.006)

0.959

 

≥ 28

2609

− 0.002 (− 0.007, 0.003)

0.492

 

eGFR, mL/min/1.73 m2

   

0.21

 < 90

1072

− 0.005 (− 0.013, 0.004)

0.235

 

≥ 90, < 120

3855

− 0.003 (− 0.008, 0.001)

0.149

 

≥ 120

1777

0.004 (− 0.003, 0.010)

0.269

 

Survey years

   

0.64

1999–2000

1595

− 0.002 (− 0.010, 0.005)

0.548

 

2001–2002

1781

0.001 (− 0.006, 0.008)

0.847

 

2003–2004

1742

− 0.003 (− 0.010, 0.002)

0.174

 

2005–2006

1586

− 0.003 (− 0.010, 0.004)

0.428

 
  1. The model was adjusted for age, race/ethnicity, education, physical activity, smoking, drinking, body mass index, calcium supplementation, energy intake, protein intake, serum calcium, serum phosphorus, 25-OH-D, parathyroid hormone (PTH) serum alkaline phosphatase (ALP), C-reactive protein (CRP), serum albumin and estimated glomerular filtration rate except the corresponding stratification variable.
  2. Serum ALP, PTH and CRP were log2 transformed prior to regression analysis.