Table 1.
Accuracy of upper GI diagnosis and curative resection reporting, plus reporting of comorbidities in APDC discharge data
| Medical records -Condition present | True positive | Sensitivity (95% CI) | False positive | Positive predictive value | κ-coefficient | |
|---|---|---|---|---|---|---|
|
UGI cancer diagnosis |
240 |
214 |
89.2 (84.4-92.7) |
|
|
|
| Oesophagus |
59 |
47 |
79.7 (66.8-88.6) |
18 |
72.3 (60.4-81.7) |
0.72 (0.63-0.81) |
| Gastric |
71 |
63 |
88.7 (78.5-94.7) |
22 |
74.1 (63.9-82.2) |
0.75 (0.62-0.89) |
| Liver |
34 |
32 |
94.1 (79.0-99.0) |
45 |
41.6 (31.8-52.3) |
0.42 (0.30-0.52) |
| Pancreas |
76 |
72 |
94.7 (86.4-98.3) |
17 |
80.9 (71.5-87.7) |
0.84 (0.78-0.90) |
|
Curative surgery |
64 |
54 |
84.4 (72.7-91.9) |
|
|
|
| Oesophagus |
6 |
4 |
66.7 (24.1-94.0) |
1 |
80.0 (30.0-98.9) |
0.79 (0.52-0.98) |
| Gastric |
30 |
27 |
90.0 (72.3-97.4) |
7 |
79.4 (63.2-89.6) |
0.83 (0.74-0.94) |
| Liver |
11 |
10 |
90.9 (57.1-99.5) |
8 |
55.6 (33.7-75.4) |
0.68 (0.48-0.87) |
| Pancreas |
17 |
13 |
76.5 (49.8-91.2) |
1 |
92.9 (68.5-98.7) |
0.83 (0.69-0.98) |
|
Comorbid conditions |
|
|
|
|
|
|
| Hypertension |
120 |
74 |
61.7 (52.3-70.3) |
50 |
59.7 (50.9-67.9) |
0.37 (0.28-0.47) |
| Diabetes |
78 |
45 |
57.7 (46.0-68.6) |
1 |
97.8 (87.0-99.9) |
0.64 (0.53-0.74) |
| IHD* |
42 |
20 |
47.6 (32.3-63.4) |
17 |
54.0 (37.1-70.2) |
0.41 (0.26-0.56) |
| GORD* |
47 |
4 |
8.5 (2.8-21.3) |
20 |
16.7 (5.5-38.2) |
<0.01 (−−, 0.09) |
| Alcohol abuse |
21 |
12 |
57.1 (34.4-77.4) |
16 |
42.9 (26.5-60.9) |
0.40 (0.22-0.60) |
| Hepatitis B or C |
17 |
6 |
35.3 (15.3-61.4) |
3 |
66.7 (35.4-87.9) |
0.47 (0.22-0.73) |
| COPD* |
7 |
3 |
42.9 (11.8-79.8) |
8 |
27.3 (7.3-60.7) |
0.33 (0.04-0.68) |
| Dementia | 10 | 7 | 70.0 (35.4-91.9) | 4 | 63.6 (35.4-84.8) | 0.72 (0.51-0.96) |
* IHD = Ischaemic heart disease;42 GORD = gastro-oesophageal reflux disease; COPD = chronic obstructive pulmonary disease.