Unadjusted, age- and multivariate adjusted associations of kyphosis with PSQI sleep quality in women and men; results of linear and logistic regression analysis

Table 3: Unadjusted, age- and multivariate adjusted associations of kyphosis with PSQI sleep quality in women and men; results of linear and logistic regression analysis

	Flexicurve
	Women (n = 255)	Men (n = 213)
Sleep measures	β^b (95% CI)	β^b (95% CI)
PSQI (range 0-18)
Unadjusted	1.40 (1.05, 1.85)	0.93 (0.68, 1.28)
Age-adjusted	1.37 (1.03, 1.82)	0.93 (0.68, 1.28)
Multivariate adjusted a	1.37 (1.03, 1.82)	0.87 (0.64, 1.19)
	OR (95% CI)	OR (95% CI)
PQSI (poor sleep > 5)
Unadjusted	1.05 (0.97, 1.13)	0.96 (0.85, 1.08)
Age-adjusted	1.04 (0.96, 1.12)	0.96 (0.85, 1.08)
Multivariate adjusted a	1.04 (0.95, 1.13)	0.93 (0.82, 1.06)

Abbreviations: PSQI = Pittsburgh Sleep Quality Index; Good sleep quality (PSQI ≤ 5) and Poor sleep quality (PSQI > 5) are based on the PSQI = Pittsburgh Sleep Quality Index (range 0-18)
^§ p < 0.05
^a Multivariate adjusted: age, marital status, height, general health, calcium supplement use, exercise, arthritis, depression and estrogen (for women)
^b Standardized β-coefficient