What do systematic reviews say?

u‐hCG vs r‐hCG

u‐hCG showed no clear difference in live birth rate per couple compared with r‐hCG (low certainty).

• Synchronised approach for intrauterine insemination in subfertile couples 2014 · Cochrane Headline outcomes only
  OR 1.17 [0.68, 2.03]
  1 study · 284 participants
  Low

u‐hCG vs r‐hCG

u‐hCG showed no clear difference in pregnancy rate per couple compared with r‐hCG (low certainty).

• Synchronised approach for intrauterine insemination in subfertile couples 2014 · Cochrane Headline outcomes only
  OR 1.02 [0.65, 1.57]
  2 studies · 409 participants
  Low

u‐hCG vs r‐hCG

u‐hCG showed no clear difference in multiple pregnancy rate per pregnancy compared with r‐hCG (low certainty).

• Synchronised approach for intrauterine insemination in subfertile couples 2014 · Cochrane Headline outcomes only
  OR 0.99 [0.4, 2.47]
  2 studies · 109 participants
  Low

u‐hCG vs r‐hCG

It is very uncertain whether u‐hCG changes miscarriage rate per pregnancy compared with r‐hCG (very low certainty).

• Synchronised approach for intrauterine insemination in subfertile couples 2014 · Cochrane Headline outcomes only
  OR 0.57 [0.13, 2.47]
  2 studies · 109 participants
  Very low

u‐hCG vs r‐hCG

• Synchronised approach for intrauterine insemination in subfertile couples 2014 · Cochrane Headline outcomes only
  no estimate extracted
  2 studies · 468 participants
  Moderate