Table 3.
Cross-tabulations, sensitivity and specificity, of measured and self-reported BMI for all respondents, males and females, in SLÁN 2007
|
All Subjects |
BMI Groups (Self-report) |
||||
|
Normal |
Overweight |
Obese |
Totals |
||
| BMI Groups (Measured) |
Normal |
692 (94.3)* |
41 (5.6) |
1 (0.1) |
734 (36) |
|
Overweight |
248 (30.8) |
531 (66) |
26 (3.2) |
805 (39.5) |
|
|
Obese |
20 (4) |
212 (42.6) |
266 (53.4) |
498 (24.4) |
|
| Totals |
960 |
784 |
293 |
2037 (100) |
|
|
Specificity |
79.4 |
79.5 |
98.2 |
||
|
Males |
BMI Groups (Self-report) |
||||
|
Normal |
Overweight |
Obese |
Totals |
||
| BMI Groups (Measured) |
Normal |
242 (92.4) |
20 (7.6) |
0 (0) |
262 (28.8) |
|
Overweight |
101 (24.4) |
296 (71.5) |
17 (4.1) |
414 (45.5) |
|
|
Obese |
5 (2.1) |
101 (43.3) |
127 (54.5) |
233 (25.6) |
|
| Totals |
348 |
417 |
144 |
909 (100) |
|
|
Specificity |
83.6 |
75.6 |
97.5 |
||
|
Females |
BMI Groups (Self-report) |
||||
|
Normal |
Overweight |
Obese |
Totals |
||
| BMI Groups (Measured) |
Normal |
450 (95.3) |
21 (4.4) |
1 (0.2) |
472 (41.8) |
|
Overweight |
147 (37.6) |
235 (60.1) |
9 (2.3) |
391 (34.7) |
|
|
Obese |
15 (5.7) |
111 (41.9) |
139 (52.5) |
265 (23.5) |
|
| Totals |
612 |
367 |
149 |
1128 (100) |
|
| Specificity | 75.3 | 82.1 | 98.8 | ||
*Sensitivity for normal, overweight and obese categories is represented in parenthesis in bold figures.