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Table 3 The rate of pregnancy between different age groups

From: The correlation between endometrial thickness and pregnancy outcomes in fresh ART cycles with different age groups: a retrospective study

VariablesGroup 1, N = 99Group 2, N = 444Group 3, N = 362Group 4, N = 95p value
Chemical pregnancy (%)30 (30.3)144 (32.5)94 (26)9 (9.5)0.001*
Clinical pregnancy (%)27 (28.2)134 (30.1)76 (21.5)8 (8.5)0.001*
  1. Group1: 18–23 years old; group 2: 23–30 years old; group 3: 30–38 years old; and group 4: > 38 years old. The data were presented with percent
  2. *p value < 0.05 was considered to be significant