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Table 3 Logistic regression predicting testing in the past 6 months

From: Predictors of Chlamydia Trachomatis testing: perceived norms, susceptibility, changes in partner status, and underestimation of own risk

Modela

Predictors:

Observed:

Predicted

β/SE/Wald

Ct test

Percentage correct

No

Yes

 

1.

Susceptibility T0b

Ct test: No

244

0

100.0

b-.44/.11/16.84

Yes

25

0

0.0

Percentage

  

90.7

2.

Intention T0c

Ct test: No

238

6

97.5

c-.42/.-8/28.06

Yes

18

7

28.0

Percentage

  

91.1

3.

Intention T0d

Ct test: No

242

2

99.2

d-.40/.08/22.55

e.78/.25/9.97

Multiple partners T1e

Yes

19

6

24.0

Percentage

  

92.2

  1. aHere, only the significant predictors are displayed
  2. model 1: all social-cognitive determinants predicting of intention (i.e., susceptibility, attitude, outcome expectations, unrealistic optimism, and subjective, descriptive and moral norms at T0
  3. model 2: intention and susceptibility
  4. model 3: intention, multiple partners in the last six months, new partner in the last six months, and stereotypical beliefs about number of partners
  5. b,c,d,e; same letters refer to the predictor - β/SE/Wald-value combination
  6. Bold text: the overall percentage of correctly predicted cases per model