Table 3.

Correlations between B-vitamins and homocysteine with salivary cortisol parameters and Perceived Stress. Baseline values are zero-order correlations. 8-week and 16-week values are partial correlations (controlling for baseline measures). p-Values greater than 0.10 are displayed as non-significant (ns).

Study Visit		Waking		Evening		CAR		PSS
		r	p	r	p	r	p	r	p
B6	baseline	0.015	ns	0.121	ns	0.032	ns	0.054	ns
	8-weeks	−0.002	ns	−0.100	ns	−0.092	ns	−0.051	ns
	16-weeks	−0.138	ns	−0.142	ns	0.205 +	0.074	0.050	ns
RCF	baseline	0.042	ns	0.059	ns	0.047	ns	0.148 +	0.098
	8-weeks	−0.177	ns	−0.095	ns	−0.097	ns	−0.057	ns
	16-weeks	−0.019	ns	−0.060	ns	0.268 *	0.019	0.151	ns
B12	baseline	−0.031	ns	0.077	ns	−0.087	ns	0.130	ns
	8-weeks	0.013	ns	−0.085	ns	−0.102	ns	−0.125	ns
	16-weeks	−0.124	ns	−0.218 +	0.060	0.091	ns	−0.058	ns
HCy	baseline	0.022	ns	−0.132	ns	0.112	ns	−0.135	ns
	8-weeks	0.313 **	0.003	−0.036	ns	−0.081	ns	0.052	ns
	16-weeks	−0.046	ns	−0.187	ns	0.035	ns	−0.045	ns
PSS	baseline	0.046	ns	−0.032	ns	−0.136	ns	-	-
	8-weeks	−0.061	ns	−0.081	ns	0.090	ns	-	-
	16-weeks	0.064	ns	0.144	ns	0.046	ns	-	-

⁺ p < 0.10; * p < 0.05; ** p < 0.01; RCF—Red cell folate; HCy—Homocysteine (serum); B6—Pyridoxine (serum); B12—Cyanocobalamin (serum); CAR—Cortisol Awakening Response.