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Table 2 Utility estimates from Hierarchical Bayes models

From: Optimizing the design of a contraceptive microarray patch: a discrete choice experiment on women’s preferences in India and Nigeria

 

HB Model 1: India

HB Model 2: Nigeria

HB Model 3: Nigeria

Attribute levels

B

SD

95% CI

B

SD

95% CI

B

SD

95% CI

No pain at application

13.0

23.0

(11.0, 15.0)

33.0

32.2

(30.2, 35.7)

58.5

38.0

(54.9, 62.2)

Light prick

3.8

22.1

(1.8, 5.7)

− 1.9

24.5

(− 4.0, 0.2)

− 4.4

20.3

(− 6.4, − 2.5)

Hard prick

− 16.8

24.2

(− 18.9, − 14.6)

− 31.0

30.0

(− 33.6, − 28.5)

− 54.1

37.4

(− 57.7, − 50.5)

One day rash

20.8

20.6

(19.0, 22.6)

10.7

12.6

(9.7, 11.8)

25.2

20.8

(23.2, 27.2)

Three day rash

− 20.8

20.6

(− 22.6, − 19.0)

− 10.7

12.6

(− 11.8, − 9.7)

− 25.2

20.8

(− 27.2, − 23.2)

Foot application

4.1

20.4

(2.3, 5.9)

− 9.1

19.2

(− 10.8, − 7.5)

− 12.7

30.4

(− 15.7, − 9.8)

Knee application

− 10.6

25.2

(− 12.8, − 8.4)

− 0.5

28.2

(− 2.9, 1.9)

12.1

31.3

(9.1, 15.1)

Wrist application

6.5

25.9

(4.2, 8.8)

9.7

24.1

(7.6, 11.7)

0.7

27.0

(− 1.9, 3.3)

Small size

7.5

25.6

(5.2, 9.7)

8.1

20.5

(6.4, 9.9)

17.3

25.0

(14.8, 19.7)

Medium size

0.2

18.3

(− 1.5, 1.8)

6.0

16.9

(4.6, 7.5)

3.7

13.1

(2.4, 4.9)

Large size

− 7.6

21.9

(− 9.6, − 5.7)

− 14.2

23.4

(− 16.2, − 12.2)

− 20.9

27.4

(− 23.5, − 18.3)

One month duration

− 30.3

38.7

(− 33.7, − 26.9)

− 59.9

73.5

(− 66.2, − 53.7)

− 96.8

82.8

(− 104.8, − 88.9)

Three month duration

0.7

20.4

(− 1.1, 2.5)

11.3

18.8

(9.7, 12.8)

13.5

18.8

(11.7, 15.3)

Six month duration

29.7

30.5

(27.0, 32.3)

48.7

66.4

(43.0, 54.3)

83.3

78.1

(75.8, 90.8)

Regular menses

177.0

84.7

(169.5, 184.4)

114.3

80.8

(107.4, 121.2)

   

Irregular menses

− 45.9

39.3

(− 49.4, − 42.4)

− 52.0

65.0

(− 57.6, − 46.5)

   

Amenorrhea

− 131.1

71.1

(− 137.3, − 124.8)

− 62.3

101.3

(− 70.9, − 53.7)

   

Interactions

 1 mo x Regular

− 41.2

26.3

(− 43.5, − 38.9)

       

 1 mo x Irregular

7.2

15.9

(5.8, 8.6)

       

 1 mo x Amenorrhea

34.0

33.7

(31.0, 37.0)

       

 3 mo x Regular

1.5

15.8

(0.1, 2.9)

       

 3 mo x Irregular

3.4

18.4

(1.8, 5.0)

       

 3 mo x Amenorrhea

− 4.9

16.8

(− 6.4, − 3.4)

       

 6 mo x Regular

39.7

25.0

(37.5, 41.9)

       

 6 mo x Irregular

− 10.6

20.9

(− 12.4, − 8.8)

       

 6 mo x Amenorrhea

− 29.1

27.1

(− 31.4, − 26.7)

       

Model statistics

 Percent certainty

0.7

  

0.7

   

0.7

  

 Fit statistic (RLH)

0.8

  

0.8

   

0.8

  

 Covariates

3

  

3

   

3

  
  1. B are estimated model coefficients representing the utility of each attribute level for the population. B, SD and 95% CI are obtained in an iterative process using a Monte Carlo Markov Chain process