Analysis of female EC deaths from the cohort screening population.
| Age (years) | IVG | CG | Total | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Population | EC death | Death rate (%) | Population | EC death | Death rate (%) | RR | 95% (CI) | P | |
| 40- | 931 | 1 | 0.11 | 823 | 3 | 0.36 | 0.29 | 0.03-2.83 | 0.259 |
| 45- | 801 | 4 | 0.5 | 1222 | 8 | 0.65 | 0.61 | 0.18-2.03 | 0.414 |
| 50- | 575 | 5 | 0.87 | 933 | 22 | 2.36 | 0.36 | 0.14-0.97 | 0.034 |
| 55- | 401 | 12 | 2.99 | 626 | 25 | 3.99 | 0.74 | 0.37-1.49 | 0.401 |
| 60- | 380 | 8 | 2.11 | 451 | 14 | 3.1 | 0.67 | 0.28-1.62 | 0.372 |
| 65-69 | 251 | 6 | 2.39 | 375 | 21 | 5.6 | 0.41 | 0.16-1.04 | 0.053 |
| Total | 3339 | 36 | 1.08 | 4430 | 93 | 2.1 | 0.51 | 0.35-0.75 | 0.000 |
There was also a downtrend in the RR of EC in the female populations from various age groups of the IVG, compared with that in the CG. This is especially pronounced in the population of the 50-year age group, with a 54% decrease in the RR, and a significant difference between the IVG and the CG. There was a 49% decrease in the overall RR value, P = 0.000.