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Table 1 Medical, Family and Environmental Histories of the 33 Cases and 27 Controls

From: Sperm aneuploidy and DNA fragmentation in unexplained recurrent pregnancy loss: a multicenter case-control study

  Cases Controls
median [q1–q3] median [q1–q3]
Couple’s fertility history
 Pregnancy (conception)* 5 [3-6] 2 [1-6]
 Live birth* 0 [0–1] 1 [1-4]
 Miscarriage* 3 [3-6] 0 [0–2]
 Time to conceive for the first conception (months) 3 [0–18] 2 [0–18]
 Time between the end of the first conception and the beginning of the second attempt at conception (months) 6 [0–64] 16 [1–80]
Andrological, family and environmental histories, and lifestyle habits of men
 Age (years) 34 [30–36] 33 [29–35]
 Body mass index (BMI)* 25 [23-27] 24 [22-25]
  n (%) n (%)
History of infections 3 (9) 6 (22)
Cryptorchidism 2 (6) 1 (4)
Varicoceles 2 (6) 3 (11)
Normal vas deferens 33 (100) 27 (100)
Abnormal epididymal position 0 (0) 1 (4)
Puberty
 before 12 years old 2 (6) 1 (4)
 after 12 years old 29 (94) 26 (96)
Family history of infertility* 16 (53) 6 (24)
Family history of miscarriage* 9 (36) 2 (9)
Family history of cancer 13 (43) 8 (33)
Tobacco status
  < 10/day 4 (12) 4 (15)
  ≥ 10/day 7 (21) 7 (26)
Drug consumption 6 (18) 6 (22)
Alcohol consumption
 occasional 29 (88) 22 (81)
  < 1 L/day 1 (3) 4 (15)
Environment
 *: large urban 12 (36) 19 (70)
 small urban 13 (39) 5 (19)
 rural 8 (24) 3 (11)
Environmental/professional exposure 12 (36) 6 (22)
  1. *P < .05 between cases and controls