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Table 4 The estimated transition rates dij from stage i to stage j of the ODE model. The stages unmotivated, indecisive, motivated and former smokers are represented by 1–4, respectively

From: Effectiveness of motivational interviewing, health education and brief advice in a population of smokers who are not ready to quit

 

unmotivated (1) ↔indecisive (2)

motivated (3)↔ indecisive (2)

 

d 12

d 21

difference

d 32

d 23

difference

BA

3657

2695

962

0.9938

0.0003

0.9935

MI

55.752

37.555

18.1970

13.532

19.135

−5.6030

HE

1.1698

0

1.1698

0

0.6286

−0.6286

 

motivated (3) ↔unmotivated (1)

transition rate to former (4)

 

d 31

d 13

difference

d 14

d 24

d 34

BA

0.0003

0.5216

−0.5213

0.00004

0.000006

0.8581

MI

25.941

21.725

4.2160

0.0329

0.0722

0.4692

HE

0

0

0

0

0

1.1147

  1. Notes: MI, HE and BA are the abbreviations for Motivational Interviewing, Health Education and Brief Advice, respectively. The sum of the squared errors related to BA, HE and MI were 3.2381 × 10−5, 31.3602 and 2.4501 × 10−5 respectively. The precision of the parameter estimate is up to 8 decimals