|
No. of smears
|
No. of positive cases
|
No. of negative cases
|
Prevalence (95% CI) (%)
|
False negative rate (%)
|
GMEPG of the positive cases (1)a
|
Overestimation of GMEPG (%)b
|
GMEPG of the positive cases (2)c
|
GMEPG of the false negative casesc
|
|---|
|
1 stool × 1 smear
|
45
|
352
|
11.3 (8.2–14.5)
|
41.6
|
126.4
|
105.2
|
121.2
|
23.8d
|
|
1 stool × 2 smears
|
49
|
348
|
12.3 (9.1–15.6)
|
36.4
|
119.9
|
94.7
|
100.8
|
26.0e
|
|
1 stool × 3 smears
|
55
|
342
|
13.9 (10.4–17.3)
|
28.6
|
91.0
|
47.8
|
79.0
|
33.1f
|
|
2 stools × 1 smear
|
64
|
333
|
16.1 (12.5–19.8)
|
16.9
|
95.4
|
55.0
|
96.1
|
6.9g
|
|
2 stools × 2 smears
|
73
|
324
|
18.4 (14.6–22.2)
|
5.2
|
74.1
|
20.3
|
70.2
|
5.7h
|
|
2 stools × 3 smears
|
77
|
320
|
19.4 (15.5–23.3)
|
0.0
|
61.6
|
0.0
|
61.6
|
–
|
- aOnly the available smears were calculated
- bThe calculation was based on the GMEPG of the positive cases (1)
- cAll six smears in ‘gold’ standard were calculated
- dt(75) = 4.39, P < 0.001, compared to the GMEPG of the positive cases (2)
- et(75) = 3.42, P = 0.001, compared to the GMEPG of the positive cases (2)
- ft(75) = 1.97, P = 0.053, compared to the GMEPG of the positive cases (2)
- gt(75) = 9.62, P < 0.001, compared to the GMEPG of the positive cases (2)
- ht(75) = 2.87, P = 0.005, compared to the GMEPG of the positive cases (2)
