Table II.
Quantitative summary of the shoulder data set and the variables that were analyzed in the study
| Minimum | Quantile |
Maximum | Mean | SD | |||
|---|---|---|---|---|---|---|---|
| 25% | 50% | 75% | |||||
| Age | |||||||
| SA | 20.00 | 36.00 | 50.00 | 55.00 | 78.00 | 47.86 | 14.65 |
| Swiss | 21.00 | 33.00 | 51.00 | 60.00 | 90.00 | 49.41 | 19.85 |
| HHD | |||||||
| Left | |||||||
| SA | 38.18 | 41.74 | 44.22 | 46.78 | 53.22 | 44.63 | 4.11 |
| Swiss | 39.34 | 44.5 | 49.14 | 51.18 | 53.58 | 47.63 | 4.16 |
| Right | |||||||
| SA | 38.94 | 42.2 | 43.9 | 47.6 | 54.82 | 45.02 | 4.16 |
| Swiss | 39.98 | 44.34 | 48.22 | 50.42 | 52.84 | 47.43 | 3.99 |
| AST | |||||||
| Left | |||||||
| SA | 15.33 | 18.26 | 19.53 | 21.38 | 27.87 | 19.94 | 2.91 |
| Swiss | 14.61 | 18.93 | 20.76 | 22.31 | 25.36 | 20.66 | 2.49 |
| Right | |||||||
| SA | 15.04 | 18.53 | 20.49 | 21.77 | 26.09 | 20.50 | 2.75 |
| Swiss | 16.97 | 18.57 | 20.48 | 21.47 | 24.94 | 20.42 | 2.19 |
| ASD | |||||||
| Left | |||||||
| SA | 37.73 | 41.10 | 43.93 | 46.61 | 53.17 | 44.18 | 4.04 |
| Swiss | 39.31 | 44.43 | 48.48 | 50.76 | 53.37 | 47.09 | 4.15 |
| Right | |||||||
| SA | 38.08 | 41.79 | 43.84 | 47.09 | 54.76 | 44.70 | 4.16 |
| Swiss | 39.50 | 43.91 | 47.74 | 50.23 | 52.64 | 47.00 | 4.03 |
| IA | |||||||
| Left | |||||||
| SA | 122.00 | 129.00 | 132.80 | 135.30 | 141.90 | 132.10 | 5.92 |
| Swiss | 112.50 | 133.00 | 135.50 | 138.30 | 143.60 | 134.40 | 6.79 |
| Right | |||||||
| SA | 122.30 | 127.10 | 130.90 | 135.50 | 138.80 | 131.10 | 5.24 |
| Swiss | 127.40 | 133.80 | 136.70 | 137.90 | 141.50 | 135.70 | 3.74 |
| MO | |||||||
| Left | |||||||
| SA | 3.89 | 5.40 | 5.76 | 6.91 | 9.60 | 6.16 | 1.48 |
| Swiss | 3.62 | 5.40 | 6.78 | 7.32 | 14.19 | 6.70 | 2.33 |
| Right | |||||||
| SA | 4.28 | 5.60 | 6.19 | 7.64 | 9.83 | 6.66 | 1.58 |
| Swiss | 3.45 | 5.50 | 6.08 | 7.04 | 8.40 | 6.22 | 1.29 |
| PO | |||||||
| Left | |||||||
| SA | 0.02 | 0.51 | 0.99 | 2.85 | 5.88 | 1.64 | 1.64 |
| Swiss | 0.07 | 0.89 | 1.57 | 2.87 | 11.32 | 2.15 | 2.28 |
| Right | |||||||
| SA | 0.00 | 0.43 | 1.10 | 2.23 | 4.93 | 1.52 | 1.37 |
| Swiss | 0.06 | 0.84 | 1.72 | 2.44 | 4.45 | 1.77 | 1.22 |
| RA1 | |||||||
| Left | |||||||
| SA | 0.63 | 24.54 | 28.19 | 34.32 | 42.47 | 25.78 | 11.43 |
| Swiss | 4.74 | 10.68 | 25.43 | 37.76 | 61.51 | 26.56 | 16.55 |
| Right | |||||||
| SA | 10.87 | 20.89 | 28.23 | 32.34 | 42.11 | 27.05 | 7.89 |
| Swiss | 3.66 | 13.01 | 20.63 | 29.45 | 44.10 | 22.26 | 10.45 |
| RA2 | |||||||
| Left | |||||||
| SA | 5.23 | 27.02 | 31.95 | 33.88 | 46.97 | 28.26 | 10.37 |
| Swiss | 2.72 | 14.14 | 27.29 | 35.60 | 71.39 | 27.70 | 17.39 |
| Right | |||||||
| SA | 11.39 | 25.91 | 28.59 | 34.35 | 44.59 | 29.67 | 9.13 |
| Swiss | 5.68 | 17.53 | 22.86 | 33.22 | 48.00 | 25.96 | 11.92 |
HHD, humeral head diameter; AST, articular surface thickness; ASD, articular surface diameter; IA, inclination angle; MO, medial offset; PO, posterior offset; RA1, retroversion angle 1; RA2, retroversion angle 2; SA, South African; SD, standard deviation.
Sample demographics: female sex = 18; male sex = 32; N: 21 (South Africa) + 29 (Switzerland); total pairs of shoulders = 50.