Table 2.
Cross-tabulations, sensitivity and specificity, of measured and self-reported BMI for all respondents, males and females, in SLÁN 2
|
All Subjects |
BMI Groups (Self-report) |
||||
|
Normal |
Overweight |
Obese |
Totals |
||
| BMI Groups (Measured) |
Normal |
102 (96.2)* |
4 (3.8) |
0 (0) |
106 (32) |
|
Overweight |
40 (28.8) |
94 (67.6) |
5 (3.6) |
139 (42) |
|
|
Obese |
0 (0) |
31 (36) |
55 (64) |
86 (26) |
|
| Totals |
142 |
129 |
60 |
331 (100) |
|
|
Specificity |
82.2 |
81.8 |
98 |
||
| Males |
BMI Groups (Self-report) |
||||
|
Normal |
Overweight |
Obese |
Totals |
||
| BMI Groups (Measured) |
Normal |
30 (100) |
0 (0) |
0 (0) |
30 (20.4) |
|
Overweight |
20 (26.7) |
55 (73.3) |
0 (0) |
75 (51) |
|
|
Obese |
0 (0) |
17 (40.5) |
25 (59.5) |
42 (28.6) |
|
| Totals |
50 |
72 |
25 |
147 (100) |
|
|
Specificity |
82.9 |
76.4 |
100 |
||
|
Females |
BMI Groups (Self-report) |
||||
|
Normal |
Overweight |
Obese |
Totals |
||
| BMI Groups (Measured) |
Normal |
72 (94.7) |
4 (5.3) |
0 (0) |
76 (41.3) |
|
Overweight |
20 (31.2) |
39 (60.9) |
5 (7.8) |
64 (34.8) |
|
|
Obese |
0 (0) |
14 (31.8) |
30 (68.2) |
44 (23.9) |
|
| Totals |
92 |
57 |
35 |
184 (100) |
|
| Specificity | 81.5 | 85 | 96.4 | ||
*Sensitivity for normal, overweight and obese categories is represented in parenthesis in bold figures.