Table 3.

Univariable associations between hospital standardised mortality ratios and variables used in models A and B of regression analyses

Variables	Regression coefficient (95% CI)
Model A
Percentage of cases admitted as emergency	1.01 (0.86 to 1.17)
No of hospital doctors per 100 hospital beds in 1994-5	−0.90 (−1.09 to −0.71)
No of general practitioners per 100 000 population*	−1.53 (−2.05 to −1.0)
Standardised admissions ratio†	−0.18 (−0.31 to −0.05)
Percentage of live discharges to home	−0.61 (−2.02 to 0.81)
Percentage of cases with comorbidity‡	4.89 (3.62 to 6.15)
NHS facilities per 100 000 population†	−2.92 (−4.02 to −1.81)
Model B
No of hospital doctors per 100 hospital beds in 1994-5	−0.57 (−0.73 to −0.42)
Percentage of cases with comorbidity§	5.71 (4.06 to 7.34)
Percentage of live discharges to home	0.58 (−0.09 to 1.26)
NHS facilities per 100 000 population†	−1.99 (−2.83 to −1.16)
Standardised admissions ratio†	−0.11 (−0.21 to −0.01)

^*According to Office of National Statistics. 

^†For health authority where hospital located. 

^‡Percentage comorbidity of bronchopneumonia or heart failure or fracture of neck of femur. 

^§Percentage comorbidity of bronchopneumonia or malignant neoplasm.