Table 2 Elemental characterization in association recurrence and death.

From: Elemental characterization of oral cavity squamous cell carcinoma and its relationship with smoking, prognosis and survival

Element

Recurrence

Death

No (n = 63)

Yes (n = 15)

P-

No (n = 49)

Yes (n = 29)

P-

Magnesium

      

Absent

54 (85.7)

15 (100.0)

0.129

44 (89.8)

25 (86.2)

0.446

Present

9 (14.3)

0 (0.0)

 

5 (10.2)

4 (13.8)

 

Phosphorus

      

Absent

4 (6.3)

1 (6.7)

0.620

5 (10.2)

0 (0.0)

0.090

Present

59 (93.7)

14 (93.3)

 

44 (89.8)

29 (100.0)

 

Sulfur

      

Absent

1 (1.6)

0 (0.0)

0.807

1 (2.0)

0 (0.0)

0.628

Present

62 (98.4)

15 (100.0)

 

48 (98.0)

29 (100.0)

 

Chlorine

      

Absent

37 (58.7)

13 (86.7)

0.037

31 (63.3)

19 (65.5)

0.841

Present

26 (41.3)

2 (13.3)

 

18 (36.7)

10 (34.5)

 

Potassium

      

Absent

11 (17.5)

3 (20.0)

0.532

8 (16.3)

6 (20.7)

0.627

Present

52 (82.5)

12 (80.0)

 

41 (83.7)

23 (79.3)

 

Calcium

      

Absent

1 (1.6)

0 (0.0)

0.807

1 (2.0)

0 (0.0)

0.628

Present

62 (98.4)

15 (100.0)

 

48 (98.0)

29 (100.0)

 

Chromium

      

Absent

40 (63.5)

5 (33.3)

0.034

39 (59.2)

16 (55.2)

0.729

Present

23 (36.5)

10 (66.7)

 

20 (40.8)

13 (44.8)

 

Manganese

      

Absent

45 (71.4)

7 (46.7)

0.067

35 (71.4)

17 (58.6)

0.246

Present

18 (28.6)

8 (53.3)

 

14 (28.6)

12 (41.4)

 

Iron

      

Absent

0 (0.0)

0 (0.0)

1.000

0 (0.0)

0 (0.0)

1.000

Present

63 (100.0)

15 (100.0)

 

49 (100.0)

29 (100.0)

 

Cobalt

      

Absent

54 (85.7)

15 (100.0)

0.129

43 (87.8)

26 (89.7)

0.554

Present

9 (14.3)

0 (0.0)

 

6 (12.2)

3 (10.3)

 

Nickel

      

Absent

54 (85.7)

13 (86.7)

0.645

41 (83.7)

26 (89.7)

0.353

Present

9 (14.3)

2 (13.3)

 

8 (16.3)

3 (10.3)

 

Copper

      

Absent

3 (4.8)

1 (6.7)

0.561

4 (8.2)

0 (0.0)

0.149

Present

60 (95.2)

14 (93.3)

 

44 (91.8)

29 (100.0)

 

Zinc

      

Absent

0 (0.0)

0 (0.0)

1.000

0 (0.0)

0 (0.0)

1.000

Present

63 (100.0)

15 (100.0)

 

49 (100.0)

29 (100.0)

 

Arsenic

      

Absent

18 (28.6)

7 (46.7)

0.177

16 (32.7)

9 (31.0)

0.544

Present

45 (71.4)

8 (53.3)

 

33 (67.3)

20 (69.0)

 

Bromine

      

Absent

18 (28.6)

7 (46.7)

0.177

16 (32.7)

9 (31.0)

0.544

Present

45 (71.4)

8 (53.3)

 

33 (67.3)

20 (69.0)

 
  1. Data represented as absolute counts (%).