Table 5.

Results of negative binomial regression analyses.

	Variable	Reference group	Estimate	S.E.	z	p
Total score	(Intercept)	-	2.22	0.26	8.44	< 0.001
	Age	-	−0.02	0.02	−0.80	0.421
	Male	Female	−0.12	0.07	−1.66	0.097
	No chronic health complaints	At least one chronic health complaint	−0.57	0.11	−5.40	< 0.001
Physical	(Intercept)	-	1.14	0.36	3.14	0.002
	Age	-	−0.02	0.03	−0.53	0.596
	Male	Female	−0.13	0.10	−1.33	0.185
	No chronic health complaints	At least one chronic health complaint	−0.58	0.14	−4.04	< 0.001 *
Emotional	(Intercept)	-	0.91	0.23	3.94	< 0.001
	Age	-	−0.03	0.02	−1.15	0.250
	Male	Female	−0.13	0.06	−2.15	0.032
	No chronic health complaints	At least one chronic health complaint	−0.39	0.09	−4.46	< 0.001 *
Cognitive	(Intercept)	-	1.06	0.33	3.16	0.002
	Age	-	−0.02	0.03	−0.74	0.461
	Male	Female	−0.09	0.09	−1.02	0.306
	No chronic health complaints	At least one chronic health complaint	−0.78	0.13	−6.13	< 0.001 *
Fatigue	(Intercept)	-	−0.46	0.42	−1.08	0.281
	Age	-	0.02	0.04	0.41	0.681
	Male	Female	−0.07	0.11	−0.61	0.540
	No chronic health complaints	At least one chronic health complaint	−0.48	0.16	−2.98	0.003 *

Estimate: regression coefficient; S.E.: standard error; z: z-value; p: p-value; values in bold are significant at 5%. Covariates additionally marked with an asterisk (^*) are significant at 1.25% (adjusted significance level after Bonferroni correction: α_adj = 0.05/4 = 0.0125).