Table 2.
Incidence of gallstones and gallbladder volume of non-gallstone subjects at different ages
| Patients age periods (n = 85) | Incidence of gallstone1 (%) |
Non-gallstone |
P value | |
| Mean GBV (cm3) (n) | SD (cm3) | |||
| Age ≤ 20 | 0 | A6.33 (9) | 2.75 | 0.0072 |
| 20 < Age ≤ 40 | 15 | B16.84 (35) | 11.04 | 0.30 |
| 40 < Age ≤ 60 | 42.5 | C15.12 (106) | 7.55 | 0.00033 |
| 60 < Age ≤ 80 | 42.5 | D19.83 (81) | 9.99 | 0.76 |
| 80 < Age | 0 | 18.73 (9) | 10.32 | |
1
P = 0.0027 by Fisher’s exact test;
2
P value A vs B: between Age ≤ 20 and 20 < Age ≤ 40;
3
P value C vs D: between 40 < Age ≤ 60 and 60 < Age ≤ 80. GBV: Gallbladder volume; SD: Standard deviation.