. 2010 May 18;5(5):e10687. doi: 10.1371/journal.pone.0010687

Table 3. Adjusted hazard ratios for mortality at 12 weeks (baseline variables).

	AHR (95% CI)*	p-value
Male sex	1.56 (0.64 to 3.84)	0.33
Age (per 10 years)	1.17 (0.66 to 2.08)	0.59
CD4⁺ count (per 10 cells/µL increase)	1.02 (0.90 to 1.15)	0.74
BMI (per 1 kg/m² increase)	0.83 (0.65 to 1.06)	0.14
Hemoglobin (per 1 g/dL increase)	0.87 (0.70 to 1.08)	0.21
Serum phosphate (per 0.1 mmol/L increase)	0.83 (0.72 to 0.95)	0.008

There is little evidence that the association between phosphate and the hazard of death is non-linear based on a likelihood ratio test (p = 0.27). Similarly, there is little evidence that the association between any continuous variable and the hazard of death is non-linear (p>0.20 for each).