Table 1. Mann-Whitney test for the evaluation of the relationship between kind of conception and age.
| Kind of conception | N | Mean | Mean Rank | Mann-Whitney U | p-value | |
|---|---|---|---|---|---|---|
| Age | Normal | 135 | 31.80 | 75.71 | 1041 | <0.001 |
| IVF | 27 | 36.22 | 110.44 |
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