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Table 1 Characteristics of RM patients

From: The impact of previous live births on peripheral and uterine natural killer cells in patients with recurrent miscarriage

  RM (n = 575) pRM(n = 393) sRM (n = 182) p-value
Agea 34.5 ± 4.5 34.1 ± 4.7 35.3 ± 3.8 0.0037
Gravidityb 4 (3/15) 3 (3/14) 3 (3/15) < 0.001
Parityb 0 (0/4) 0 1 (1/4) < 0.001
No. of miscarriagesb 3 (3/14) 3 (3/14) 3 (3/14) 0.68
Time since last miscarriagea 6.8 ± 8.9 5.7 ± 5.1 6.0 ± 5.5 0.42
BMIa 24.3 ± 4.2 23.98 ± 4.1 24.82 ± 4.4 0.135
P4a 10.6 ± 5.7 10.7 ± 5.6 10.3 ± 5.8 0.50
  iRM (n = 248) ipRM (n = 167) isRM (n = 81) p-value
Agea 34.2 ± 4.9 33.6 ± 5.1 35.3 ± 4.2 0.0097
Gravidityb 4 (4/15) 3 (3/10) 4 (4/15) < 0.001
Parityb 0 (0/4) 0 1 (1/4) < 0.001
No. of miscarriagesb 3 (3/14) 3 (3/10) 3 (3/14) 0.89
Time since last miscarriagea 6.1 ± 6.6 6.2 ± 7.3 5.8 ± 5.1 0.67
BMIa 24.12 ± 4.5 23.25 ± 3.9 25.4 ± 5.1 0.029
P4a 11.1 ± 6.0 11.1 ± 6.2 11.0 ± 5.7 0.90
  1. amean ± SD
  2. bmedian (min/max)
  3. Characteristics: Age (years), Gravidity, Parity, No. of miscarriages (number of miscarriages), Time since last miscarriage (at least 3 months), BMI (body mass index), P4 (progesterone levels, ng/ml) at time of immune diagnostics (luteal phase of the menstrual cycle); RM recurrent miscarriage, pRM primary RM, sRM secondary RM, iRM idiopathic RM, ipRM idiopathic primary RM, isRM idiopathic secondaryRM