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The Himalaya by the Numbers: A Statistical Analysis - Himalayan ...

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6<br />

5<br />

4<br />

3<br />

2<br />

1<br />

0<br />

1.16<br />

0.43<br />

0.13<br />

BARU<br />

(4/<br />

922)<br />

0.76<br />

0.27<br />

AMAD<br />

(15/<br />

3275)<br />

0.46<br />

0.86<br />

154 Appendix B<br />

0.63<br />

0.92<br />

Member Death Rates for Popular Peaks (1950-2006)<br />

(Adjusted Wald 95% Confidence Intervals)<br />

0.65<br />

1.84<br />

0.46 0.46 0.48<br />

All<br />

6000ers<br />

(40/<br />

6358)<br />

CHOY<br />

(32/<br />

4920)<br />

LHOT<br />

(9/<br />

945)<br />

0.95<br />

Chart D-3: Member death rates for popular peaks from 1950-2006<br />

with more than 500 member climbers above base camp<br />

Members<br />

Above BC<br />

1.93<br />

1.37<br />

EVER<br />

(129/<br />

7928)<br />

1.77<br />

1.63 1.64<br />

1.51<br />

All Peaks<br />

(571/<br />

34920)<br />

Death<br />

Count<br />

Survival<br />

Count<br />

Death<br />

Rate<br />

95% Confidence<br />

Interval<br />

Yates'<br />

Chi Square<br />

Lower Upper p-value<br />

Baruntse 922 4 918 0.43 0.13 1.16 0.005<br />

Ama Dablam 3275 15 3260 0.46 0.27 0.76

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