Table 5.
Colony | Degree of growth | n | Mean rank | Mann–Whitney U test | ||
---|---|---|---|---|---|---|
Silver | Iodine | Silver | Iodine | |||
Leukocytes | Nil/scant/low | 116 | 110 | 124·02 | 102·40 | 5159·50 ** |
Mod/high | 16 | 17 | 18·69 | 15·41 | 109·00 | |
Gram + bacilli | Nil/scant/low | 90 | 90 | 99·53 | 81·47 | 3237·00 * |
Mod/high | 5 | 1 | 3·80 | 2·00 | † | |
Gram – bacilli | Nil/scant/low | 62 | 64 | 67·97 | 59·17 | 1707·00 |
Mod/high | 43 | 32 | 40·60 | 34·50 | 576·00 | |
Gram + cocci | Nil/scant/low | 72 | 73 | 82·62 | 63·51 | 1935·00 ** |
Mod/high | 41 | 35 | 40·56 | 36·09 | 633·00 | |
Gram – cocci | Nil/scant/low | 87 | 83 | 93·88 | 76·72 | 2881·50 * |
Mod/high | – | – | – | – | – |
*Significant at < 0·05,
**Significant at < 0·01,
†Sample too small for analysis.