Caucasians—in-out | Andrews—in-out | Comparison | ||||||
---|---|---|---|---|---|---|---|---|
n | Mean | Standard deviation | n | Mean | Standard deviation | t test | p level | |
U1 | 60 | 1.48 | 0.30 | 240 | 2.01 | 0.32 | −11.88 | <0.001 |
U2 | 60 | 1.15 | 0.24 | 240 | 1.84 | 0.30 | −18.36 | <0.001 |
U3 | 60 | 1.66 | 0.34 | 240 | 2.67 | 0.39 | −19.75 | <0.001 |
U4 | 60 | 1.61 | 0.24 | 240 | 2.54 | 0.35 | −24.19 | <0.001 |
U5 | 60 | 1.66 | 0.29 | 240 | 2.48 | 0.36 | −18.53 | <0.001 |
U6 | 60 | 2.01 | 0.47 | 240 | 2.88 | 0.40 | −12.86 | <0.001 |
U7 | 60 | 2.75 | 0.62 | 238 | 3.00 | 0.51 | −2.85 | 0.006 |
L1 | 60 | 1.01 | 0.32 | 240 | 1.59 | 0.27 | −12.97 | <0.001 |
L2 | 60 | 0.93 | 0.32 | 240 | 1.64 | 0.32 | −14.98 | <0.001 |
L3 | 60 | 1.38 | 0.27 | 240 | 2.37 | 0.40 | −22.91 | <0.001 |
L4 | 60 | 1.93 | 0.28 | 240 | 2.72 | 0.43 | −17.36 | <0.001 |
L5 | 60 | 1.91 | 0.32 | 240 | 2.60 | 0.34 | −14.55 | <0.001 |
L6 | 60 | 2.66 | 0.38 | 240 | 3.02 | 0.40 | −6.37 | <0.001 |
L7 | 60 | 2.83 | 0.72 | 236 | 2.79 | 0.47 | 0.37 | ns |