[BHJ LOGO] Original/Research ArticlesContentsHomeArchivesSearchBooksFeedback

MORTALITY IN BOMBAY HOSPITAL- Six Years Study

Atul Shah*, Hl Dhar**

*Statistician, Director Research MRC, Bombay Hospital, Mumbai 400 020.

- Daily inpatients admission varies from 70-73. No significant change in death rate during 1993 (2.93%) and 1998 (2.45%). Deaths per day declining from 2.07 (1993) to 1.76 (1998). Male to female death ratio 3:2. Majority of patients (63%) died within 2 to 15 days. Maximum death occurred in adults (50%) followed by elderly (33%).

INTRODUCTION

Medical Research Centre of the Bombay Hospital Trust is a multidisciplinary hospital with sophisticated diagnostic facilities and highly specialised doctors and good nursing care.

Purpose of the present study was to analyse the death rate during the six years (1993-98) to see whether there was any appreciable change in death rate. No such study has been reported from this metropolitan city.

SUBJECTS AND METHODS

Hospital death records were analysed from 1993 to 1998 including general parameters, date of admission, duration of hospital stay, and the day on which patient died.

RESULTS AND DISCUSSION

6 years hospital data on mortality does not show any significant change; death rate declining marginally, however, more deaths occurred in males compared to females.

Table 1 shows total deaths by admission and daily mortality. It is evident from the table that death rate per day in the hospital shows a declining trend from 2.93% in 1993 to 2.45% in 1998. Deaths per day also reduced from 2.07% in 1993 to 1.76 in 1998 however, difference is not statistically significant. Patients’ admission remained almost unchanged around 70-72 patients everyday.

Table 2 shows sex-wise mortality showing approximately 67% male died against 33% females, however, death rate calculated from last 2 years (97 and 98) record shows ratio of male female mortality as 3:2 (Table 3).

Table 4 shows death according to age groups. Neonatal deaths varies around 4% to 4.5%, paediatrics 6.5% to 9%, adults 47% to 53.30% and elderly 33% to 41%. It was observed that neonatal and paediatric mortality remained almost constant throughout six years. But in the adult age-group, there was a gradual decline in mortality from 93 to 94 and then unchanged till 98. In elderly age group, however, mortality was 33% in 1993 which gradually increased to 40%. It is possible that elderly subjects were brought to the hospital in advanced stage compared to adults.

TABLE 1 Mortality (in-patients)
Year
1993
1994
1995
1996
1997
1998
Total Admissions
25763
25320
26157
26667
26367
26236
Total deaths
756
727
735
749
705
644
Deaths (%)
2.93
2.87
2.80
2.81
2.67
2.45
Deaths per day
2.07
1.99
2.01
2.05
1.93
1.76

 

TABLE 2 Mortality (Sex-wise)
Year
1993
1994
1995
1996
1997
1998
Male
512
489
495
503
477
435
     
(67.72)
(67.26)
(67.35)
(67.15)
(67.66)
(67.55)
Female
244
238
240
246
228
209
   
(32.28)
(32.74)
(32.65)
(32.85)
(32.34)
(32.45)
Total
756
727
735
749
705
644
100%

Fig. 1 shows 8% to 10% of patients died within one day, 36% to 40% died within 2 to 7 days, 24% to 27% died within 8 to 15 days, 17% to 20% died within 16 to 30 days and 7.5% to 11% died after 30 days of hospitalisation. 45-50% died within 1st week, subsequent death rate was reduced to 25% during 2nd week, 20% during 3rd and 4th week and 10% beyond one month. This trend in mortality,during hospital admission remained similar throughout six years’ period. It is possible that patients were stabilised and condition improved with better treatment and care.

TABLE 3 Death rate/admissions
Sex
1997
1998
Both years
Male
3.19
2.92
3.09
Female
1.99
1.84
1.91

 

Fig 1: Deaths in hospital (duration).
Fig 1
Deaths in hospital (duration).

TABLE 4 Mortality (Age-wise)
Year
1993
1994
1995
1996
1997
1998
Still birth
2
2
1
   
(0.26)
(0.27)
(0.12)
Neonatal (up to 3 months)
34
(4.50)
35
(4.82)
36
(4.90)
33
(4.40)
26
(3.68)
25
(3.90)
Paediatric (3 mths-18 yrs)
66
(8.70)
55
(7.56)
58
(7.90)
50
(6.68)
54
(7.66)
58
(9.00)
Adults
19 yrs.-59 yrs.
403
(53.33)
358
(49.24)
370
(50.34)
373
(49.80)
338
(47.94)
313
(48.60)
Elderly (60 and above)
251
(33.21)
277
(38.11)
270
(36.74)
293
(39.12)
287
(40.72)
248
(38.50)
Total
756
727
735
749
705
644
100%


    To Section TOC
    Sponsor-Dr.Reddy's Lab