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Table 4 Frequencies of procedures and validity indices for the dental claims-based procedure identification

From: Validity of diagnoses and procedures in Japanese dental claims data

 

Eligible patients

Frequency (charts)

Inter-reviewer agreement (kappa)

Frequency (dental claim)

Sensitivity (95% CI)

Specificity (95% CI)

PPV (95% CI)

NPV (95% CI)

 

n

n

(%)

 

n

(%)

    

Procedures

 Intubation

100

11

(11.0)

0.66

11

(11.0)

0.82 (0.48, 0.98)

0.98 (0.92, 1.00)

0.82 (0.48, 0.98)

0.98 (0.92, 1.00)

Food intake (postoperative)

 Day 0

80

9

(11.3)

0.84

75

(93.8)

0.89 (0.52, 1.00)

0.06 (0.02, 0.14)

0.11 (0.05, 0.20)

0.80 (0.28, 0.99)

 Day 1

80

75

(93.8)

0.97

75

(93.8)

0.95 (0.87,0.99)

0.20 (0.01,0.72)

0.95 (0.87, 0.99)

0.20 (0.01, 0.72)

 Day 2

78

73

(93.6)

0.97

73

(97.3)

0.95 (0.87, 0.98)

0.20 (0.01, 0.72)

0.95 (0.87, 0.99)

0.20 (0.01, 0.72)

 Day 3

73

67

(91.8)

1.00

68

(93.2)

0.94 (0.85, 0.98)

0.17 (0.00, 0.64)

0.93 (0.84, 0.98)

0.20 (0.01, 0.72)

 Tube feeding

100

20

(20.0)

1.00

24

(24.0)

0.90 (0.68, 0.99)

0.93 (0.84, 0.97)

0.75 (0.53, 0.90)

0.97 (0.91, 1.00)

 Tooth extraction (outpatient)

200

47

(24.5)

0.96

49

(24.5)

1.00 (0.92, 1.00)

0.99 (0.95, 1.00)

0.96 (0.86, 1.00)

1.00 (0.98, 1.00)

 Tooth extraction (inpatient)

100

18

(18.0)

0.79

12

(12.0)

0.61 (0.36, 0.83)

0.99 (0.93, 1.00)

0.92 (0.62, 1.00)

0.92 (0.84, 0.97)

 Orthopantomography

200

113

(56.5)

0.99

127

(63.5)

0.99 (0.95, 1.00)

0.83 (0.73, 0.90)

0.88 (0.81, 0.93)

0.99 (0.93, 1.00)

 Computed tomography

200

15

(7.5)

1.00

15

(7.5)

1.00 (0.79, 1.00)

1.00 (0.98, 1.00)

1.00 (0.79, 1.00)

1.00 (0.98, 1.00)

 Rehabilitation for eating

100

0

(0.0)

–

0

(0.0)

–

–

–

–

 Videoendoscopic evaluation of swallowing

100

1

(1.0)

1.00

0

(0.0)

0

0

0

0

 Swallowing videofluorography

100

0

(0.0)

–

0

(0.0)

–

–

–

–

 Caries treatment

200

6

(3.0)

0.92

7

(3.5)

0.83 (0.36, 1.00)

0.99 (0.96, 1.00)

0.71 (0.29, 0.96)

0.99 (0.97, 1.00)

 Scaling (outpatient)

200

44

(44.0)

0.93

32

(16.0)

0.73 (0.57, 0.85)

1.00 (0.98, 1.00)

1.00 (0.89, 1.00)

0.93 (0.88, 0.96)

 Scaling (inpatient)

100

42

(42.0)

0.91

6

(6.0)

0.10 (0.03, 0.23)

0.97 (0.88, 1.00)

0.67 (0.22, 0.96)

0.60 (0.49, 0.70)

 Repairing of denture

200

4

(2.0)

0.49

5

(2.5)

1.00 (0.40, 1.00)

0.99 (0.97, 1.00)

0.80 (0.28, 0.99)

1.00 (0.98, 1.00)

 Tissue conditioning

200

3

(1.5)

1.00

3

(1.5)

0.67 (0.09, 0.99)

0.99 (0.97, 1.00)

0.67 (0.09, 0.99)

0.99 (0.97, 1.00)

 Oral splints

200

2

(1.0)

0.00

3

(1.5)

1.00 (0.16, 1.00)

0.99 (0.97, 1.00)

0.67 (0.09, 0.99)

1.00 (0.98, 1.00)

 Sedation

200

0

(0.0)

–

0

(0.0)

–

–

–

–

  1. NPV Negative predictive value, PPV Positive predictive value