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Table 3 Maternal admission factors associated with maternal mortality in a tertiary hospital in Kenya from January 2004 to March 2011

From: Risk factors for maternal mortality in a Tertiary Hospital in Kenya: a case control study

Admission factors

Risk factor

Cases n = 150 n (%)

Controls n = 300 n (%)

Unadjusted OR (95% CI)

Adjusted OR (95% CI)a

P-value††

Comorbid complications

    

<0.0001

Yes

93(62)

63(21)

0.2(0.1–0.3)

6.7(3.8–11.8)

 

No

57(38)

237(79)

1

1

 

Eclampsia

    

0.0038

Yes

33(22)

16(5)

5.0(2.7–9.4)

4.7(1.6–13.7)

 

No

117(78)

284(95)

1

1

 

Dystocia

     

Yes

21(14)

51(17)

0.8(0.5–1.4)

  

No

129(86)

249(83)

1

  

Haemorrhage

     

Yes

20(13)

15(5)

2.9(1.5–5.9)

  

No

120(87)

285(95)

1

  

Diastolic blood pressure (mm HG)**

    

0.0039

Normal

102(72)

280(96)

1

1

 

Low

16(11)

2(1)

22.0(5.0–97.2)

7.5(1.5–37.7)

 

High

24(17)

10(3)

6.6(3.0–14.3)

3.2(0.9–10.6)

 

Systolic blood pressure (mm HG)**

     

Normal

93(65)

271(93)

1

  

Low

33(23)

6(2)

16.0(6.5–39.5)

  

High

17(12)

15(5)

3.3(1.6–6.9)

  

Haemoglobin

     

<10 g/dL

63(52)

43(20)

4.2(2.6–6.9)

  

> = 10 g/dL

59(48)

171(80)

1

  

Pulse

    

<0.0001

<110 bpm

103(71)

283(99)

1

1

 

> = 110 bpm

41(28)

4(1)

28.2(9.8–80.6)

16.5(4.8–57.3)

 

Temperature

     

<37.5°C

110(82)

205(95)

1

  

> = 37.5°C

24(18)

11(5)

4.1(1.9–8.6)

  

Referral

    

<0.0001

No

63(42)

234(78)

1

1

 

Yes

87(58)

66(22)

4.9(3.2–7.5)

3.3(1.9–5.7)

 
  1. **Diastolic blood pressure was used as a proxy for systolic because of high correlation.
  2. Temp and haemoglobin were omitted in the adjusted model because of too many missing values.
  3. ††P- value for Likelihood Ratio Test in the adjusted model.
  4. aAdjusted for variables included in the final demographic model.
  5. Reference category for logistic regression represented by 1.
  6. Numbers may not add to total sample due to missing values.