ALB and sarcopenia: The scatter plot shows a high correlation between nutritional status factors, including BMI (p < 0.001, Figure 1A), hemoglobin level (p = 0.014, Figure 1B), albumin level (p = 0.029, Figure 1D), prealbumin level (p = 0.018, Figure 1E), and cholesterol level (p = 0.016, Figure 1F), and L3 SMI, indicating that poor nutritional status is a risk factor for sarcopenia in NSCLC patients.