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Broad palm: PB/PL > 0,81 (= high palm width vs palm length ratio)

Prevalence in general population (GP): relatively common [~16% | 1:1 | weight: 1.00]

NOTICE: broad palms are more common in males than females, also more common in the Middle-East

Most likely diagnostic options for a broad palm (ranked by 'weight' for the general population):


trisomy 21 (= Down syndrome) [~50?% | 1:700 | weight: 0.004]
fragile-X syndrome [~70?% | 1:5K | weight: 0.0009]
achondroplasia (= dwarfism) [~95+% | 1:25K | weight: 0.0002]
trisomy 13 (= Patau syndrome [~50?% | 1:15K | weight: 0.0002]
5p- syndrome (= cri-du-chat syndrome) [~50?% | 1:30K | weight: 0,0001]



[1st figure = prevalence hand sign in condition | 2nd
figure = prevalence condition in GP | 3rd figure =
estimated hand sign weight for condition relative
to GP (>0,5 = present in majority of GP)]

- Recommended sources involving broad palms:

Earth hands & Air hands!
PB/PL ratio: data for 19 human populations!
Broad palm: PB/PL > 0,81.

Quick summary:
broad palms are often seen in males & Middle East people; broad palms are typically seen in Down syndrome, very broad palms in achondroplasia.

[In every 1000 broad palm cases in the general population (GP) there are only 4 trisomy 21 cases with a broad palm, etc.]

NOTICE: Keep in mind that every single hand sign always bares the potential
to have an association with multiple psychology- and/or health related themes;
a solid assessment always requires a consideration of hand sign combinations!

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