
2010

2011

2012


Odds ratio (absolute margins)^{$}

95% Confidence interval

P value

Odds ratio (absolute margins)^{$}

95% Confidence interval

P value

Odds ratio (absolute margins)^{$}

95% Confidence interval

P value


Special track recruitment

2.23 (0.12)

1.084.59

0.030*

2.45 (0.10)

1.384.33

0.002**

2.46 (0.15)**

1.384.40

0.002**

Location of medical school outside Bangkok

1.12 (0.02)

0.622.03

0.705

0.59 (−0.06)

0.341.00

0.050

0.94 (−0.01)

0.571.52

0.789

Location of residence during ages 1 to 15 years old outside Bangkok

1.71 (0.08)

0.714.13

0.232

1.10 (0.01)

0.472.57

0.826

0.98 (−0.00)

0.501.91

0.951

Location of current residence outside Bangkok

0.70 (−0.05)

0.261.89

0.484

1.73 (0.06)

0.694.33

0.244

1.48 (0.06)

0.713.09

0.295

Location of secondary school outside Bangkok

1.15 (0.02)

0.542.42

0.722

1.16 (0.02)

0.552.47

0.699

0.94 (−0.01)

0.531.66

0.825

 The goodness of fit using the Hosmer and Lemeshow test showed a Pearson Chisquare and its P value as follows: 28.15 (P value = 0.030), 8.27 (0.94) and 30.26 (0.025) for the 2010, 2011, and 2012 batch, respectively. ^{$}Absolute margins are the absolute effects (probabilities) of intention to fulfil the 3year obligations given the particular variable compared to the probabilities without that variable. For instance, in the 2010 batch, graduates from special track had 12% higher probabilities to fulfil the 3year obligations than those from the normal track. *, Statistical significance at 95% level of confidence; **, statistical significance at 99% level of confidence.