Table 3 Association of age group and sex with loss of tibial cartilage volume (%/year) over 10.7 years
|  | Multivariable, β (95% CI) | ||
|---|---|---|---|
Medial | Lateral | Total tibia | |
Combined (n = 428)†| |||
 Age 50–60 years | Ref. | Ref. | Ref. |
 Age 60–70 years | 0.16 (− 0.01 to 0.33) | 0.07 (− 0.05 to 0.20) | 0.11 (0.00 to 0.22) |
 Age 70–80 years | 0.38 (0.08 to 0.67) | 0.31 (0.08 to 0.53) | 0.35 (0.16 to 0.54) |
 p for trend | 0.006 | 0.012 | < 0.001 |
Females (n = 211)‡ | |||
 Age 50–60 years | Ref. | Ref. | Ref. |
 Age 60–70 years | 0.26 (0.01 to 0.51) | 0.11 (− 0.09 to 0.31) | 0.17 (− 0.01 to 0.34) |
 Age 70–80 years | 0.29 (− 0.19 to 0.76) | 0.60 (0.22 to 0.98) | 0.47 (0.13 to 0.80) |
 p for trend | 0.042 | 0.007 | 0.004 |
Males (n = 217)‡ | |||
 Age 50–60 years | Ref. | Ref. | Ref. |
 Age 60–70 years | 0.09 (− 0.14 to 0.32) | 0.02 (− 0.14 to 0.18) | 0.05 (− 0.08 to 0.19) |
 Age 70–80 years | 0.41 (0.03 to 0.79) | 0.12 (− 0.15 to 0.39) | 0.27 (0.05 to 0.49) |
 p for trend | 0.053 | 0.449 | 0.035 |
Interaction with sex | − 0.04 (− 0.29 to 0.21) | − 0.17 (− 0.36 to 0.02) | − 0.10 (− 0.26 to 0.07) |
p for interaction | 0.778 | 0.084 | 0.241 |