TABLE 5.

Results of the multiple logistic regression analysis for evaluating the effect of interventional therapy versus standard therapy on patients’ symptoms.

Variable	Cough**	Diarrhea	Fatigue	Headache	Rhinorrhea	Ageusia	Anosmia	SOB	Pharyngitis
Interventional treatment (versus STD)
NS (OR)	0.20**	0.20	0.15**	0.73	0.89	0.42	0.15*	0.23	0.18
CI	(0.07–0.59)	(0.03–0.92)	(0.04–0.48)	(0.22–2.40)	(0.16–5.07)	(0.08–1.86)	(0.02–0.74)	(0.04–1.23)	(0.02–0.94)
VD (OR)	0.48	0.13	0.44	2.75	2.62	1.25	0.67	0.58	0.44
CI	(0.17–1.34)	(0.01–0.82)	(0.12–1.50)	(0.79–10.8)	(0.48–16.2)	(0.27–6.01)	(0.11–3.90)	(0.09–3.47)	(0.07–2.29)
NS + VD (OR)	0.23*	0.10*	0.10***	0.44	0.39	0.42	0.33	0.11*	0.14*
CI	(0.07–0.70)	(0.01–0.66)	(0.03–0.33)	(0.12–1.53)	(0.05–2.52)	(0.08–1.86)	(0.05–1.79)	(0.02–0.58)	(0.02–0.70)

*p < 0.05 **p < 0.01 ***p < 0.001.

**Ordinal logistic regression model. OR, odds ratio; CI, confidence interval.

Abbreviations: NS, Nigella sativa, VD, vitamin D3; SOB, shortness of breath; STD, standard therapy; NS + VD, Nigella sativa–vitamin D3 combination.