* Suvey Data on Upper Respiratory Tract infections;

data family;



crowding    father    mother    child1    child2    child3    over    ok    under

---------------------------------------------------------------------------------

 high          5         7         6        25        19        1      0      0

 high         11         8        11        33        35        1      0      0

 high          3        12        19         6        21        1      0      0

 high          3        19        12        17        17        1      0      0

 high         10         9        15        11        17        1      0      0

 high          9         0         6         9         5        1      0      0

 medium       11         7         7        15        13        0      1      0

 medium       10         5         8        13        17        0      1      0

 medium        5         4         3        18        10        0      1      0

 medium        1         9         4        16         8        0      1      0

 medium        5         5        10        16        20        0      1      0

 medium        7         3        13        17        18        0      1      0

 low           6         3         5         7         3        0      0      1

 low           9         6         6        14        10        0      0      1

 low           2         2         6        15         8        0      0      1

 low           0         2        10        16        21        0      0      1

 low           3         2         0         3        14        0      0      1

 low           6         2         4         7        20        0      0      1