Table 2 Characteristics of infertile men’ semen parameters between 2011 and 2017
Year | n | Semen parameters [median (25–75)] | ||||||
|---|---|---|---|---|---|---|---|---|
Semen volume(ml) | Sperm concentration(106/ml) | Sperm totalcount (106) | Sperm progressive motility (PR) | Total motile spermatozoa[(PR + NP)] | Immotile spermatozoa (IM) | Total motile sperm count (106) | ||
2011 | 6236 | 3.2(2.4–4.1) | 47.1(20.3–70.9) | 143.8(70.1–214.0) | 35.5(24.0–46.0) | 46.5(38.5–61.9) | 53.5(37.8–61.2) | 73.8(34.2–117.5) |
2012 | 8529 | 3.0(2.4–4.2) | 51.6(21.0–82.5) | 145.3(71.8–178.8) | 33.4(25.1–36.9) | 49.8(32.3–62.6) | 50.2(36.8–68.3) | 68.9(30.4–110.1) |
2013 | 10,205 | 3.2(2.3–4.3) | 41.2(18.2–61.3) | 126.5(63.0–166.3) | 35.2(28.3–37.6) | 46.9(41.1–56.8) | 53.0(46.1–70.3) | 57.6(28.9–108.3) |
2014 | 11,809 | 3.0(2.2–4.0) | 52.1(26.6–85.1) | 153.1(72.9–130.7) | 35.1(22.1–47.2) | 50.3(38.2–61.6) | 49.7(38.3–61.8) | 75.6(29.9–130.7) |
2015 | 12,331 | 3.2(2.4–4.2) | 40.1(23.5–52.3) | 117.8(65.0–178.9) | 37.8(28.4–44.9) | 46.8(40.2–54.8) | 53.2(45.2–59.4) | 55.5(26.1–91.9) |
2016 | 11,075 | 3.2(2.4–4.2) | 48.3(28.4–70.2) | 145.4(78.5–223.3) | 38.1(26.1–46.6) | 55.1(42.5–62.5) | 44.8(37.3–57.4) | 75.4(36.2–123.7) |
2017 | 11,438 | 3.3(2.5–4.4) | 43.6(31.2–59.6) | 140.6(82.5–204.9) | 36.1(25.5–43.9) | 46.7(36.7–56.1) | 53.2(43.8–63.1) | 64.9(32.5–105.4) |
P-valuea | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | < 0.001 | |
P-valueb | > 0.1 | > 0.1 | > 0.1 | > 0.1 | > 0.1 | > 0.1 | > 0.1 | |
Sen’s slope estimatec | Q | 0.017 | −0.583 | −0.533 | 0.520 | 0.075 | −0.075 | − 0.800 |
B | 3.13 | 47.10 | 143.80 | 34.16 | 46.75 | 53.15 | 69.70 | |