Table 5 Number of patients needed to screen to find a new DM case among TB patients, in Hanoi, Vietnam, 2016. (n = 831)
From: Prevalence and associated factors of diabetes mellitus among tuberculosis patients in Hanoi, Vietnam
Characteristic | Total TB patients evaluated for DM (n) | Number of patients with previous DM (n) | Number of newly diagnosed DM patients (n) | Additional yield (%) | Number needed to screen to diagnose a new case (n) |
|---|---|---|---|---|---|
Total | 831 | 64 | 50 | 43.9 | 17 |
Sex | |||||
Male | 549 | 49 | 39 | 44.3 | 14 |
Female | 282 | 15 | 11 | 42.3 | 26 |
Age, years | |||||
< 40 | 289 | 4 | 11 | 73.3 | 26 |
40–65 | 390 | 45 | 27 | 37.5 | 14 |
≥ 65 | 152 | 15 | 12 | 44.4 | 13 |
Family history of DM | |||||
Yes | 69 | 17 | 3 | 15.0 | 23 |
No | 762 | 47 | 47 | 50.0 | 16 |
Type of TB | |||||
PTB - smear positive | 391 | 40 | 20 | 33.3 | 20 |
PTB - smear negative | 271 | 21 | 19 | 47.5 | 14 |
EPTB | 169 | 3 | 11 | 78.6 | 15 |
BMI, kg/m2 | |||||
Underweight, < 18.5 | 289 | 19 | 19 | 50.0 | 15 |
Normal, 18.5–24.9 | 518 | 38 | 31 | 44.9 | 17 |
Overweight, > = 25 | 24 | 7 | 0 | 0.0 | |