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Table 1 Linear model coefficient estimates of TB risk among residents and non-residents (1995ā€“2011)

From: Time series analysis of demographic and temporal trends of tuberculosis in Singapore

Lag 0

Non-resident model

Estimate

Lower confidence interval (2.5%)

Upper confidence interval (97.5%)

p value

Intercept

2.26

2.19

2.32

< 0.001*

t

āˆ’0.003

āˆ’0.0032

āˆ’0.0019

< 0.001*

cos(2*(pi/180)*t)

0.233

0.186

0.279

< 0.001*

Adjusted R-square

0.47

Ā Ā Ā 

Resident model

Estimate

Lower confidence interval (2.5%)

Upper confidence interval (97.5%)

p value

Intercept

0.639

0.573

0.706

<0.001*

t

āˆ’0.0002

āˆ’0.0008

āˆ’0.0005

0.602

cos(2*(pi/50)*t)

āˆ’0.063

āˆ’0.109

āˆ’0.017

0.008*

cos(2*(pi/100)*t)

āˆ’0.068

āˆ’0.119

āˆ’0.017

0.009*

cos(2*(pi/17)*t)

āˆ’0.046

āˆ’0.092

0.0001

0.051

cos(2*(pi/180)*t)

0.302

0.254

0.351

<0.001*

Adjusted R-square

0.53

Ā Ā Ā 

Lag 4

Non-resident model

Estimate

Lower confidence interval (2.5%)

Upper confidence interval (97.5%)

p value

Intercept

2.579

2.51

2.65

< 0.001*

t

āˆ’0.003

āˆ’0.0038

āˆ’0.0025

< 0.001*

cos(2*(pi/180)*t)

0.478

0.429

0.527

< 0.001*

Adjusted R-square

0.72

Ā Ā Ā 

Resident model

Estimate

Lower confidence interval (2.5%)

Upper confidence interval (97.5%)

p value

Intercept

0.708

0.642

0.774

<0.001*

t

āˆ’0.0009

0.0004

āˆ’0.802

0.424

cos(2*(pi/50)*t)

āˆ’0.064

āˆ’0.111

āˆ’0.018

0.007*

cos(2*(pi/100)*t)

āˆ’0.075

āˆ’0.125

āˆ’0.024

0.004*

cos(2*(pi/17)*t)

āˆ’0.046

āˆ’0.092

0.00007

0.050

cos(2*(pi/180)*t)

0.314

0.266

0.362

<0.001*

Adjusted R-square

0.550

Ā Ā Ā 
  1. *; Statistically significant (pā€‰<ā€‰0.05).