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Table 6 Availability of facility inputs and SES: Availability across SES quintiles, equity ratio, concentration index and indirectly standardized concentration index (*=p<0.05; **=p<0.01)

From: Analyzing the equity of public primary care provision in Kenya: variation in facility characteristics by local poverty level

Outcome: Facility inputs

SES Quintiles

P- value (chi-squared test of association by SES quintiles)

Equity ratio

Concentration index1

Indirectly standardized concentration index1

Poorest 20%

2nd quintile

3rd quintile

4th quintile

Least poor 20%

n=68

n=65

n=30

n=38

n=47

%

%

%

%

%

[95% CI]

[95% CI]

[95% CI]

[95% CI]

[95% CI]

Equipment & infrastructure

Equipment

61.1

52.5

80.0

48.1

69.7

P = 0.20

1.14

0.01

−0.02

N=248

[45.3-74.9]

[31.0-73.1]

[45.7-95.0]

[35.5-60.9]

[47.6-85.3]

P=0.76

P=0.49

Electricity

22.7

34.2

23.9

38.5

71.7

P <0.01**

3.16

0.09

0.07

N=247

[11.3-40.5]

[21.9-49.0]

[6.5-58.6]

[13.9-70.9]

[45.1-88.6]

P<0.01**

P<0.01**

Water

85.5

82.1

91.8

92.3

83.8

P = 0.70

0.98

0.01

−0.01

N=248

[72.1-93.0]

[39.1-97.0]

[75.7-97.5]

[58.2-99.1]

[41.3-97.5]

P-0.54

P=0.55

Commodities

Drugs

16.1

6.0

22.1

21.1

31.7

P = 0.15

1.97

0.04

0.02

N=248

[7.9-30.0]

[3.1-11.5]

[6.8-52.8]

[10.8-37.0]

[15.3-54.4]

P<0.01**

P=0.10

Family planning

79.1

72.1

58.7

82.8

91.4

P = 0.20

1.16

0.02

0.01

N=247

[71.1-85.3]

[36.4-92.1]

[41.3-74.2]

[56.2-94.8]

[71.8-97.8]

P=0.48

P=0.83

Vaccines

70.3

72.9

76.6

84.7

83.2

P = 0.64

1.18

0.02

0.03

N=247

[53.2-83.2]

[45.1-89.8]

[32.5-95.7]

[48.4-97.0]

[61.5-93.9]

P=0.47

P=0.52

Staff

Qualified staff

29.9

54.5

49.1

44.3

56.6

P = 0.32

1.89

0.03

0.03

N=248

[16.5-47.9]

[36.7-71.1]

[23.7-75.1]

[28.8-60.9]

[38.2-73.4]

P=0.08

P=0.04*

Support staff

64.1

68.4

57.2

50.2

78.3

P = 0.41

1.22

0.01

<−0.01

N=248

[44.6-79.9]

[37.2-88.7]

[39.0-73.7]

[36.0-64.4]

[49.8-92.9]

P=0.72

P=0.89

  1. 1 P-value for the concentration index shows whether the concentration index is significantly different from zero).