151751-Najiba-Chargi

81 Diagnostics: cut-off values for low skeletal muscle mass Table 1. (Continued) All subjects (n = 1415) Men (n = 988) Women (n = 427) P-value Localization of tumor Oropharynx Hypopharynx Larynx Oral cavity Nasopharynx Paranasal sinus Salivary gland Unknown primary Skin (lip, ear, face) 500 (35.3) 207 (14.6) 267 (18.9) 319 (22.5) 51 (3.6) 21 (1.5) 20 (1.4) 18 (1.3) 12 (0.8) 334 (33.8) 174 (17.6) 209 (21.2) 188 (19.0) 37 (3.7) 13 (1.3) 10 (1.0) 14 (1.4) 9 (0.9) 166 (38.9) 33 (7.7) 58 (13.6) 131 (30.7) 14 (3.3) 8 (1.9) 10 (2.3) 4 (0.9) 3 (0.7) <0.01 AJCC stage I II III IV x 103 (7.3) 165 (11.7) 280 (19.8) 856 (60.5) 11 (0.8) 57 (5.8) 118 (11.9) 178 (18.0) 628 (63.6) 7 (0.7) 46 (10.8) 47 (11.0) 102 (23.9) 228 (53.4) 4 (0.9) <0.01 Legend: AJCC stage: American Joint Committee on Cancer staging system for describing the extent of disease progression. P-value of <0.05 was considered statistically significant. CORRELATION ANALYSIS The SMA at the level of C3 and CSMI were not normally distributed (Kolmogorov-Smirnov p<0.05). SMM (CSMI) had a significantly low correlation with age at diagnosis (Spearman r 2 =0.1, p<0.05) and a significantly moderate correlation with BMI (Spearman r 2 =0.4, p<0.01) and gender (Spearman r 2 =0.4, p<0.01). Figure 2 shows the scatter plots of the association between CSMI and age and CSMI and BMI in females and males. Figure 2. Scatterplots of the association between CSMI and age and CSMI and BMI. 5