Skip to main content

Table 1 Basic study characteristics

From: Semen parameters in men recovered from COVID-19: a systematic review and meta-analysis

Author (year)

Country

Design

Mean age

Mean BMI

Outcomes

Semen analysis

Sex hormones

Erbay (2021) [21]

Turkey

Cross-sectional

30.68

25.28

Semen volume, sperm concentration, total sperm number, progressive sperm motility, vitality

 

Guo (2021) [10]

China

Case-control

27.55

 

Semen volume, sperm concentration, total sperm number, progressive sperm motility, sperm motility, vitality

Estradiol, FSH, LH, testosterone, prolactin, inhibin

Holtman (2021) [11]

Germany

Cohort

38.2

25.2

Semen volume, sperm concentration, total sperm number, progressive sperm motility, sperm motility

Estradiol

Ma (2021) [13]

China

Cross-sectional

38.2

  

FSH, LH, testosterone

Raun (2021) [22]

China

Cross-sectional

30.8

 

Semen volume, sperm concentration, total sperm number, progressive sperm motility, sperm motility

 

Temiz (2021) [12]

Turkey

Cross-sectional

36.6

26.6

Total sperm number, progressive sperm motility, sperm motility

FSH, LH, testosterone, prolactin

Xu (2021) [17]

China

Cross-sectional

59.2

25.5

 

Estradiol, FSH, LH, testosterone

  1. Units of semen analysis according to WHO fifth edition, semen volume (ml), sperm concentration (× 106 ml−1), total sperm count (millions per ejaculate), progressive sperm motility (%), sperm motility (%), sperm vitality (%), WBC (× 109/L). Unit of sex hormones, estradiol (pg ml−1), FSH (U l−1), LH (U l−1), testosterone (ng ml−1), prolactin (ng ml−1)
  2. FSH follicle stimulating hormone, LH luteinizing hormone