Sputum samples | Before introduction of modified forms (n = 244) n (%) | After introduction of modified forms (n = 924) n (%) | Total (n = 1168) n (%) | P-value |
---|---|---|---|---|
Smear examination result@ | Â | Â | Â | 0.13 |
   Sputum samples smear positive | 9 (3.9) | 63 (6.9) | 72 (6.3) |  |
   Sputum samples smear negative | 221 (96.1) | 856 (93.1) | 1077 (93.7) |  |
Volume# | Â | Â | Â | Â |
   Sputum samples with volume ≥3 ml | -* | 429 (54.1) |  |  |
   Sputum samples with volume < 3 ml | -* | 364 (45.9) |  |  |
Color& | Â | Â | Â | <0.001 |
   Sputum samples yellow-green | 53 (35.1) | 459 (54.0) | 512 (51.1) |  |
   Sputum samples with other color | 98 (64.9) | 391 (46.0) | 489 (48.9) |  |
Viscosity$ | Â | Â | Â | <0.001 |
   Sputum samples that appear sputum | 66 (37.7) | 494 (55.4) | 560 (52.5) |  |
   Sputum samples that appear saliva | 109 (62.3) | 397 (44.6) | 506 (47.5) |  |