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. 2015 Oct;3(5 Suppl):146–687. doi: 10.1177/2050640615601623

Table 1.

Study variables significantly associated with malignancy

VARIABLE INITIAL VISIT
FINAL VISIT
Malignancy (%) Control (%) P value Malignancy (%) Control (%) P value
Cyst size 16 451 0.003* 13 344 <0.001*
Mean (mm) ± SD 27.7 ± 16.0 17.5 ± 12.4 32.2 ± 10.1 17.2 ± 10.4
Duct involvement 19 469 <0.001¥ 15 370 0.001¤
Main/Mixed duct  Branch duct 9 (47.4%) 10 (52.6%) 43 (9.2%) 426 (90.8%) 6 (40.0%) 9 (60.0%) 30 (8.2%) 340 (91.9%)
Mass-nodule 19 472 0.14¤ 16 429 <0.001¥
Yes 3 (15.8%) 31 (6.6%) 5 (31.3%) 14 (3.2%)
Symptoms 19 473 <0.001¤ 17 463 <0.001¥
Yes 15 (79.0%) 167 (35.3%) 8 (47.1%) 45 (9.7%)
Steatorrhea 19 476 0.03¤ 19 476 0.04¤
Yes 17 (89.5%) 470 (98.7%) 1 (5.3%) 0 (0%)
Diabetes mellitus 19 476 <0.001¥ 19 476 <0.001¥
Yes 7 (36.8%) 50 (10.5%) 6 (31.6%) 33 (6.9%)

*Wilcoxon rank-sum test, ¥Chi-square test, ¤Fisher’s exact test