Skip to main content

Table 2 Content validity, difficulty, and discrimination per item on the CAPSOM. Leon, Guanajuato, Mexico, 2019. (n = 207)

From: Validation of an instrument to determine oral health knowledge, attitudes, and practices during pregnancy

Item

Dimension

Attribute

CVR’a

A/Rb

Dc

dd

1

Knowledge

Issues with tooth decay and bleeding gums can get worse during pregnancy

1

A

0.45

p < 0.001

2

 

Gum problems can affect my pregnancy and create problems with my baby’s birth

0.9

A

0.72

 

3

 

It is inevitable to lose a tooth during pregnancy

0.8

A

0.5

 

4

 

My baby’s development will extract calcium from my teeth

0.8

A

0.33

 

 

Teeth should be brushed one or more times a day during pregnancy

0.5

R

 

Going to the dentist during pregnancy poses a risk for my baby and me

0.3

R

5

Attitudes

Hygiene measures are important to minimize any oral complications that may arise during the pregnancy

0.8

A

0.35

p < 0.001

6

 

It is important to go to the dentist before, during and after the pregnancy

0.9

A

0.36

 

 

It is very important to monitor your oral health during pregnancy

0.4

R

7

Practices

I brush my teeth twice or more times a day

1

A

0.41

p < 0.001

8

 

I use other methods of oral hygiene such as mouthwash, flossing, etc

1

A

0.35

 

9

 

I have received information from a dental professional about oral health care during my pregnancy

0.8

A

0.21

 

10

 

I have visited a dentist during my pregnancy

1

A

0.32

 
   

CVI’e 0.90

 

Total Df 0.40

 
  1. aCVR’: content validity ratio for 10 experts (acceptable value > 0.60)
  2. bA/R: item accepted/item rejected according to the value obtained from the CVR’
  3. cD: difficulty index for the item (acceptable value 0.20 to 0.80)
  4. dd: discrimination level per item (Kruskal–Wallis, 0.05)
  5. eCVI’: Content Validity Index (acceptable value > 0.58)
  6. fTotal D: average difficulty index of the item (acceptable values close to optimum difficulty 0.50)