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Table 3.

Percent change (95% CI) in bone mass density by the systemic immune-inflammation index in pre- and postmenopausal women.

Variables n Total femur Femur neck Trochanter Intertrochanter
Premenopause
Per doubling of SII 1948 −0.06 (−0.81, 0.69) −0.39 (−1.21, 0.44) −0.40 (−1.28, 0.49) 0.18 (−0.58, 0.94)
SII quartiles
Quartile 1 (<376.20) 487 Reference Reference Reference Reference
Quartile 2 (376.20–514.90) 487 0.08 (−0.06, 1.13) 0.08 (−1.07, 1.25) 0.02 (−1.20, 1.27) 0.18 (−0.87, 1.24)
Quartile 3 (515.00–705.50) 487 −0.06 (−1.11, 0.99) −0.21 (−1.36, 0.95) −0.50 (−1.72, 0.74) 0.14 (−0.91, 1.20)
Quartile 4 (>705.50) 487 0.38 (−0.68, 1.45) −0.16 (−1.32, 1.10) 0.12 (−1.12, 1.38) 0.71 (−0.36, 1.79)
P for trend 0.558 0.677 0.936 0.228
Postmenopause
Per doubling of SII 2144 −1.39 (−2.20, −0.57)c −1.16 (−2.00, −0.31)b −1.73 (−2.66, −0.78)c −1.35 (−2.20, −0.50)b
SII quartiles
Quartile 1 (<337.80) 536 Reference Reference Reference Reference
Quartile 2 (337.80–463.00) 537 −0.48 (−1.70, 0.75) −0.79 (−2.05, 0.47) −0.43 (−1.84, 0.99) −0.38 (−1.64, 0.90)
Quartile 3 (463.10–644.00) 536 −0.13 (−1.35, 1.11) 0.16 (−1.11, 1.45) −0.39 (−1.80, 1.04) −0.18 (−1.46, 1.11)
Quartile 4 (>644.00) 535 −1.86 (−3.08, −0.63)b −1.58 (−2.84, −0.30)a −2.19 (−3.59, −0.77)b −1.97 (−3.13, −0.59)b
P for trend 0.008 0.068 0.005 0.009

All models were adjusted for age, race, education levels, annual family income, BMI, serum cotinine, physical activity, marital status, calcium intake, smoking status, drinking status, and use of prednisone or cortisone. aP < 0.05, bP < 0.01, cP < 0.001.