Table 2. . Key demographic characteristics, serum albumin, total calcium and albumin-corrected calcium by gender.

Variables	Male (mean ± SD)	Female (mean ± SD)	p-value
n	390	254
Age at diagnosis (years)	62.13 ± 14.94	59.12 ± 16.40	0.02
TNM classification (n):
– T0N0M0	51	41
– T1N0M0	104	62
– T2N0M0	160	113
– T3 (any T, N1+, M0)	54	28
– T4 (any T, any N, M1+)	21	10
Breslow thickness (n = 490)	2.11 ± 2.13	1.88 ± 1.94	0.23
Current status (n = 578), n (%):
– Alive (n = 449)	263 (76)	186 (80)
– Deceased (n = 127)	82 (24)	45 (20)
Mean serum albumin (g/dl) (n = 564):	4.13 ± 0.35	4.12 ± 0.35	0.63
– Stage 0	4.01 ± 0.36	4.19 ± 0.37
– Stage 1	4.17 ± 0.33†	4.08 ± 0.37
– Stage 2	4.16 ± 0.34‡	4.13 ± 0.34
– Stage 3	4.18 ± 0.33§	4.10 ± 0.34
– Stage 4	3.87 ± 0.49†,‡,§	4.04 ± 0.37
Mean serum calcium (mg/dl) (n = 644):	9.44 ± 0.48	9.50 ± 0.52	0.18
– Stage 0	9.31 ± 0.49	9.40 ± 0.54
– Stage 1	9.47 ± 0.44	9.49 ± 0.52
– Stage 2	9.45 ± 0.49	9.56 ± 0.49
– Stage 3	9.52 ± 0.48	9.49 ± 0.56
– Stage 4	9.37 ± 0.59	9.26 ± 0.66
Mean albumin-corrected calcium (mg/dl) (n = 564):	9.53 ± 0.44	9.60 ± 0.44	0.07
– Stage 0	9.40 ± 0.33	9.51 ± 0.37
– Stage 1	9.53 ± 0.40	9.60 ± 0.44
– Stage 2	9.53 ± 0.48	9.61 ± 0.46
– Stage 3	9.57 ± 0.48	9.66 ± 0.45
– Stage 4	9.68 ± 0.36	9.49 ± 0.48

^†p = 0.01; ^‡p = 0.009; ^§p = 0.013.

SD: Standard deviation.