. 2023 Jan 23;52(1):afac324. doi: 10.1093/ageing/afac324

Table 2.

Prevalence comparison between the NAKO-derived and EWGSOP2 cut-off points for low grip strength in the KORA-Age sample

		Low grip strength		Prevalence of low grip strength (%)	Rate ratio of NAKO-derived to EWGSOP2 prevalence (95% CI)^a	Age-standardised prevalence of low grip strength (%)^b	Rate ratio of NAKO-derived to EWGSOP2 age-standardised prevalence (95% CI)^a
		Yes (n)	No (n)	Prevalence of low grip strength (%)	Rate ratio of NAKO-derived to EWGSOP2 prevalence (95% CI)^a	Age-standardised prevalence of low grip strength (%)^b
All (n = 1,012)	EWGSOP2	139	873	13.7	1.5 (1.3, 1.7)	11.7	1.5 (1.3, 1.7)
All (n = 1,012)	NAKO	209	803	20.7	1.5 (1.3, 1.7)	17.7	1.5 (1.3, 1.7)
Men (n = 513)	EWGSOP2	73	440	14.2	1.6 (1.3, 1.9)	10.6	1.6 (1.3, 1.9)
Men (n = 513)	NAKO	115	398	22.4	1.6 (1.3, 1.9)	17.0	1.6 (1.3, 1.9)
Women (n = 499)	EWGSOP2	66	433	13.2	1.4 (1.1, 1.7)	12.1	1.4 (1.1, 1.8)
Women (n = 499)	NAKO	94	405	18.8	1.4 (1.1, 1.7)	17.4	1.4 (1.1, 1.8)

Low grip strength defined based on NAKO-derived cut-off points: <29 kg for men and <18 kg for women. Low grip strength defined based on EWGSOP2 cut-off points: <27 kg for men and <16 kg for women [6]. CI: confidence interval, EWGSOP2: European Working Group on Sarcopenia in Older People 2, n: number of participants, NAKO: German National Cohort.

^aEWGSOP2 is the reference group for comparison.

^bAge-standardisation was performed with the German population on 31 December 2008 [39].