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High hand index: PB/HL > 0,485 (= broad hand shape)

Prevalence in general population (GP): very common [~10% | 1:1 | weight: 1,00]

NOTICE: high hand index is more common in males than females, also more common in the Middle-East

Most likely diagnostic options for high hand index (ranked by 'weight' for the general population):

- ASSOCIATED PSYCHOLOGICAL CONDITIONS:

masculinity [~40% | 1:7 | weight: 0,57]
low Conscientiousness (C-) [~15% | 1:4 | weight: 0,37]
male firefighters [~55?% | 1:280 | weight: 0,02]


- ASSOCIATED MEDICAL CONDITIONS:

trisomy 21 (= Down syndrome) [~45?% | 1:700 | weight: 0,006]
fragile-X syndrome [~55?% | 1:5K | weight: 0,001]
achondroplasia (= dwarfism) [~99+?% | 1:25K | weight: 0,0004]
trisomy 13 (= Patau syndrome [~50?% | 1:15K | weight: 0,0003]
5p- syndrome (= cri-du-chat syndrome) [~40?% | 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)]



- More: Hand Index (section) -
Low hand index: palm breadth vs. hand length is low.

Quick summary:
high hand index is often seen in males, Middle East people & low scorers for the Big Five personality dimension Conscientousness (C+); high hand index is typically seen in Down syndrome, very high hand index in achondroplasia.

[For every 100 high hand index (HI) cases in the general population (GP) you can expect to find 57 masculinity cases, 37 low Conscientiousness cases, 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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