Table 3 Evolution, odd ratio (OR) and significance for center of pressure parameters of Surface (Surf), Length (Lg), mean medio-lateral (X) and antero-posterior (Y) projections of COP during eyes opened test for the low, middle and high levels of balance groups
High balance (n = 250) | Middle balance (n = 40) | Low balance (n = 48) | P-value | ||||
|---|---|---|---|---|---|---|---|
% | % | OR (IC 95%) | % | OR (IC 95%) | |||
Surface | Surftm < Surfin | 51 | 58 | 1.41 (1.27–1.56) | 64 | 2.91 (2.57–3.30) | < 0.001 |
Surftm = Surfin | 16 | 13 | 7 | ||||
Surftm > Surfin | 33 | 29 | 1.08 (0.97–1.21) | 30 | 1.95 (1.71–2.23) | ||
Length | Lgtm < Lgin | 43 | 67 | 2.98 (2.67–3.34) | 60 | 3.28 (2.91–3.69) | < 0.001 |
Lgtm = Lgin | 19 | 10 | 8 | ||||
Lgtm > Lgin | 38 | 23 | 1.18 (1.04–1.33) 32 | 32 | 1.99 (1.76–2.26) | ||
medio-lateral projection | Xtm < Xin | 41 | 40 | 1.66 (1.49–1.85) | 47 | 1.73 (1.57–1.91) | < 0.001 |
Xtm = Xin | 20 | 12 | 13 | ||||
Xtm > Xin | 39 | 49 | 2.10 (1.89–2.34) | 40 | 1.54 (1.39–1.71) | ||
antero-posterior projection | Ytm < Yin | 47 | 52 | 0.94 (0.84–1.04) | 51 | 1.11 (0.99–1.23) | < 0.001 |
Ytm = Yin | 11 | 13 | 11 | ||||
Ytm > Yin | 42 | 35 | 0.71(0.63–0.79) | 38 | 0.93 (0.83–1.03) | ||