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Table 3 Mortality by baseline sociodemographic characteristics:

From: Predictors of mortality among elderly people living in a south Indian urban community; a 10/66 Dementia Research Group prospective population-based cohort study

Socio demographic characteristic

Cumulative mortality

Hazard ratio (95%CI)

Hazard ratio (95% CI)

Adjusted for Age and sex

Log-rank test

Age group (MV 1 = 2)

   

χ2 = 38.3,

df(3), p = <0.001

65-69

42/268 (13.5%)

Ref

Ref

 

70-74

44/231 (19.0%)

1.5 (0.9-2.2)

1.5 (1.0-2.3)

 

75-79

30/112 (26.8%)

2.3 (1.4-3.7)

2.2(1.4-3.6)

 

80+

37/92 (40.2%)

3.5 (2.2-5.5)

3.5 (2.2-5.5)

 

Sex (MV = 10)

   

χ2 = 13.9,

df (1), p = 0.0002

Female

65/422 (15.4%)

Ref

Ref

 

Male

83/316 (26.3%)

1.8 (1.3-2.5)

1.8 (1.3-2.5)

 

Marital status (MV = 1)

   

χ2 = 1.73,

df (3),p = 0.63

Never married

4/12(33.3%)

Ref

Ref

 

Married

87/382 (22.7%)

0.5 (0.2-1.6)

0.5 (0.1-1.4)

 

Widowed

59/330(17.8%)

0.5 (0.2-1.5)

0.6 (0.2-1.8)

 

Divorced/separated

4/23(17.4%)

0.4 (0.1-1.7)

0.4 (0.1-1.8)

 

Living arrangements (MV = 0)

   

χ2 = 0.2,

df (1), p = 0.66

Alone or with spouse only

22/117 (18.8%)

0.9 (0.5-1.4)

0.9 (0.5-1.4)

 

With others

132/631 (20.9%)

Ref

Ref

 

Educational level (MV = 2)

   

χ2 = 0.0,

df (1),p = 0.99

None

68/314 (21.6%)

Ref

Ref

 

Some

33/178 (18.5%)

0.9 (0.6-1.4)

0.7(0.5-1.2)

 

Primary

35/160 (21.8%)

1.0 (0.7-1.6)

0.8 (0.5-1.2)

 

Secondary & Higher

17/94(18.1%)

0.9 (0.5-1.6)

0.6 (0.3-1.1)

 

Have friends (MV = 2)

   

χ2 = 4.70,

df(1), p = 0.03

Yes

66/382 (17.2%)

Ref

Ref

 

No

87/364 (24%)

1.4 (1.0-1.9)

1.3 (0.9-1.8)

 

Frequency of meeting friends (MV = 2)

   

χ2 = 4.2,

df(4), p = 0.3

Daily

51/288 (17.7%)

Ref

Ref

 

2-3 times/week

7/42 (16.6%)

1.0 (0.4-2.3)

1.1 (0.5-2.5)

 

At least weekly

5/31 (16.1%)

1.1 (0.4-2.8)

1.3 (0.5-3.3)

 

Less often

3/16 (18.7%)

1.2 (0.3 -3.7)

1.1 (0.3-3.6)

 

No friends/never see

87/369 (23.6%)

1.4 (1.0 -2.0)

1.5 (1.0-2.1)

 

Socioeconomic status

    

Declared Income (MV = 0)

   

χ2 = 2.65,

df(2), p = 0.26

< Rs.3000

104/446 (23.3%)

Ref

Ref

 

Rs.3000 to 6000

28/197 (14.2%)

0.9 (0.6 -1.4)

1.0 (0.6-1.5)

 

> Rs. 6000

22/105 (20.9%)

1.4 (0.8 -2.2)

1.3 (0.8-2.2)

 

Number of Assets (MV = 1)

   

χ2 = 0.75,

df(1), p = 0.39

1st quarter (fewest)

16/90 (17.7%)

Ref

Ref

 

2nd quarters

79/368 (21.4%)

1.4 (0.8 -2.4)

1.4 (0.8 -2.5)

 

3rd quarters

19/105 (18.1%)

1.4 (0.7-2.7)

1.3 (0.6 -2.5)

 

4th quarter (highest)

39/184 (21.2%)

1.5 (0.8 -2.7)

1.3 (0.7 -2.3)

 

Pension receipt (MV = 0)

   

χ2 = 0.00,

df(1), p = 0.96

Yes

135/653 (20.6%)

Ref

Ref

 

No

19/95 (20.0%)

1.0 (0.6-1.6)

0.9 (0.5 -1.4)

 

Food insecurity (MV = 3)

   

χ2 = 0.28,

df(1), p = 0.59

No

121/598 (20.2%)

Ref

Ref

 

Yes

33/147 (22.4%)

1.1 (0.7 -1.6)

1.1 (0.7 -1.6)

 
  1. 1. MV = Number of missing values