Cost of illness in inclusion body myositis: results from a cross-sectional study in Germany

Table 4 Differences and correlations of sociodemographic and disease specific variables regarding the total COI

	N	Mean €	SD	P-value (corr. p-value^a)
Age groups				0.728
< 65	19	81,141	14,802
65–69	13	61,123	16,648
70–74	20	64,392	12,425
75–79	15	80,464	17,010
> 80	15	93,311	23,845
Age				0.765
Sex				0.946
Female	18	64,697	9521
Male	64	79,159	9145
ENMC criteria				0.906
Clinico-pathologically defined	36	67,785	8839
Clinically defined	28	83,363	15,161
Probable	18	80,905	17,271
sIFA				0.118
SCQ-D				0.383
Degree of disability				0.012*
Disease duration (since first symptoms)				0.294
Wheelchair use				0.125
Yes	31	85,033	11,376
No	51	70,484	9771
Health insurance				0.107
Privat	26	64,489	8096
Statutory	54	93,602	15,194
Satisfaction with healthcare				0.153
Satisfaction with health insurance				0.891
Financial difficulties due to IBM				0.196
Not	32	52,529	7527
A little	24	89,042	13,581
Quite a bit	14	83,428	22,567
Very	9	95,309	27,192
Care level				0.108
No care level	30	62,153	10,969
Care level 1	0
Care level 2	18	63,045	11,568
Care level 3	20	70,577	12,452
Care level 4	9	140,824	33,829
Care level 5	5	110,475	37,284
Housing conditions				0.133
Flat	28	76,105	12,980
House	47	81,245	9903
Home with professional support^b	7	40,185	20,814
Marital status				0.005*
Single, widowed, divorced	13	39,718	15,779
Married	69	82,817	8111
Employment status				0.049*
Retired	65	74,811	8385
Non-working due to IBM	2 (employed)^c	167,552	2382	0.026*^a (0.154)
Employed	9 (self-employed)^c	44,690	14,756	0.032*^a (0.191)
Self-employed	5	119,487	33,740
Educational level				0.274
Medium	46	79,723	9503
High	33	67,536	11,404
BMI				0.984
Underweight	0
Normal weight	37	74,126	10,677
Overweight	36	79,059	11,773
Obese	8	78,784	25,602

COI cost of illness, SD standard deviation
*p < 0.05
^ap-values after Bonferroni correction are additionally reported in brackets for pairwise comparison of variables showing significant differences in total COI
^bIncluding home for the elderly, assisted living and nursing home
^cVariables with significant pairwise comparisons

ISSN: 1750-1172