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Statistical Methods in Medical Research 4ed

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Table 13.1 (cont.)<br />

Variable 10 11 12 13 14 15 16 17 18 19<br />

1 Physical health good<br />

2 Optimistic about future<br />

3 Never breathless<br />

4 Breathlessness does not distress me<br />

5 Rarely cough<br />

6 Cough<strong>in</strong>g does not trouble me<br />

7 Never wheezy<br />

8 Hardly ever feel ill<br />

9 Condition has improved<br />

10 Never worry about future<br />

11 Confident could cope 0 71<br />

12 Health depends on me 0 26 0 46<br />

13 Worth try<strong>in</strong>g anyth<strong>in</strong>g 0 32 0 21 0 02<br />

14 Wife happy with my condition 0 01 0 11 0 20 0 11<br />

15 Feel like go<strong>in</strong>g out 0 12 0 02 0 20 0 31 0 29<br />

16 Relax<strong>in</strong>g with other people 0 24 0 15 0 01 0 59 0 07 0 50<br />

17 Support the family 0 03 0 04 0 03 0 03 0 43 0 13 0 09<br />

18 Mak<strong>in</strong>g a useful contribution 0 21 0 63 0 50 0 09 0 05 0 18 0 05 0 09<br />

19 Accept my condition 0 52 0 27 0 17 0 08 0 30 0 26 0 22 0 25 0 23<br />

20 Feel happy 0 28 0 18 0 04 0 03 0 23 0 20 0 07 0 11 0 18 0 27<br />

13.2 Pr<strong>in</strong>cipal components 461

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