Today marks the start of Twins, Triplets & More Awareness Week 2013.
To join in the celebrations I thought I’d share some fun and interesting facts about twins.
- Of every 1,000 women who gave birth in 2011, 16.1 women had more than one baby. In 1976 that number was 9.6 woman out of every 1000.
- Chances of having a twin pregnancy is increased by maternal age (30+).
- Fraternal twining (non-identical) is genetically predisposed and the result of a woman releasing more than one egg at the same time.
- Identical twins are the result of a random split of a single egg and cannot be genetically predisposed.
- Male twins will not have twins unless their wives have the ability to produce two eggs.
- Identical twins share the same DNA but do not have the same fingerprints.
- 22 % percent of twins are left handed, compared to 10% in singletons.
- Vanishing twin syndrome- 15-20% percent of all twin pregnancies will miscarry one foetus. Some estimates suggest 1 in 8 people started life as a twin while 1 in 70 actually are a twin.
- Once you have fraternal twins, you are 3 to 4 times more likely to have another set!
- Nigeria has the highest rate of multiple births and more identical twins.
- China has the lowest rate for multiple births averaging 1 in 300.
- Studies have shown that unborn twins interact in the womb at 14 weeks into pregnancy
- Over 50% of twins are born before 37 weeks
- The average birth weight for a twin is 5lbs, 5 oz.
Happy Twins, Triplets & More Week to all my fabulous multiple mummy friends 🙂