Table 2.
Descriptive statistics for the study population and the subgroup with cysts
| Total population n = 295 | Population with cysts n = 150 | |
|---|---|---|
| Age | 39.6 (10 to 92) | 38.7 (15 to 75) |
| Sex | ||
| Male | 54.6% n = 161 | 41.3% n = 62 |
| Female | 45.4% n = 134 | 58.7% n = 88 |
| Hand dominance | Right 88.4% n = 261 | Right 88% n = 132 |
| Affected hand | Right 50.5% n = 149; Left 49.5% n = 146 | Right 50.7% n = 76; Left 49.3% n = 74 |
| Acute trauma | 70.2% n = 207 | 50.6% n = 76 |
| Injury SL | 20% n = 59 | 26% n = 39 |
| SL dorsal pain | 22.4% n = 66 | 28% n = 42 |
| Occupation | ||
| Architecture and engineering | 2.0% n = 6 | 3.3% n = 5 |
| Arts design sports and media | 2.4% n = 7 | 2.7% n = 4 |
| Grounds cleaning and maintenance | 2.4% n = 7 | 3.3% n = 5 |
| Business and financial operations | 0.3% n = 1 | 0.7% n = 1 |
| Computer and mathematical | 3.4% n = 10 | 4.7% n = 7 |
| Construction and extraction | 5.1% n = 15 | 6.7% n = 10 |
| Education, training, and library | 16.9% n = 50 | 16.7% n = 25 |
| Farming fishing and forestry | 1.4% n = 4 | 1.3% n = 2 |
| Food preparation and serving related | 7.8% n = 23 | 9.3% n = 14 |
| Healthcare support | 10.2% n = 30 | 12% n = 18 |
| Homemaker | 2.0% n = 6 | 2.0% n = 3 |
| Installation maintenance and repair | 5.8% n = 17 | 4.7% n = 7 |
| Legal | 1.0% n = 3 | 0.7% n = 1 |
| Management | 2.4% n = 7 | 0.7% n = 1 |
| Not reported/unemployed | 11.5% n = 34 | 9.3% n = 14 |
| Office and administration | 9.8% n = 29 | 8.7% n = 13 |
| Personal care and service | 3.1% n = 9 | 2.7% n = 4 |
| Production | 1.4% n = 4 | 0.7% n = 1 |
| Protective service | 1.7% n = 5 | 2.0% n = 3 |
| Retired | 4.7% n = 14 | 1.3% n = 2 |
| Sales and related | 1.7% n = 5 | 2.7% n = 4 |
| Transportation and material moving | 3.1% n = 9 | 4.0% n = 6 |
| Classifications cysts in the population n = 150 | ||
| Guérini [8] | Modified (see “Discussion”) | |
|
1: on the surface of SL 41.3% n = 62 |
1b: in DCSS with visible pedicle 48% n = 72 1a: in DCSS with no visible pedicle visible 20.7% n = 31 |
|
|
2: within the SL 27.3% n = 41 |
2: in DCSS with extension under DIC 10% n = 15 | |
|
3: passing under the ST 10% n = 15 |
3: in DCSS extending dorsally to RCD 12% n = 18 |
|
|
4: superficial to RCD and ST 21.4% n = 32 |
4: Complex cyst originating in DCSS with extension under DIC and dorsally to RCD 9.3% n = 14 | |