Physical frailty and cognitive impairment in older nursing home residents: a latent class analysis

BMC Geriatrics

Table 3 Physical frailty 3-class latent class model: subgroup prevalence and item-response probabilities of indicators

		Mild physical frailty subgroup	Moderate physical frailty subgroup	Severe physical frailty subgroup
Subgroup prevalence		7.6%	44.5%	47.9%
Item-response probabilities
Fatigue
0	No (never or 1 day)	0.74^a	0.61^a	0.62^a
1	Yes (several days/everyday)	0.22	0.34	0.31
2	PHQ-9 ≥ 10	0.04	0.06	0.07
Resistance^b
0	Independent	0.56^a	0.00	0.00
1	With set-up only	0.33	0.03	0.00
2	Need physical assistance	0.11	0.96^a	1.00^a
Ambulation^c
0	Independent	0.53^a	0.05	0.01
1	With assistive device	0.18	0.13	0.01
2	Cannot walk	0.29	0.82^a	0.98^a
Incontinence
0	None	0.67^a	0.30	0.03
1	Urinary incontinence only	0.22	0.38^a	0.08
2	Bowel incontinence	0.11	0.32	0.89^a
Loss of weight
0	None	0.98^a	0.98^a	0.96^a
1	≥ 5% past 3 mo./ ≥10% past 6 mo.	0.02	0.02	0.04
Nutritional approach
0	Regular diet	0.90^a	0.85^a	0.49^a
1	Mechanically altered diet	0.10	0.15	0.41
2	Require feeding tube	0.01	0.01	0.11
Help with dressing
0	Independent	0.24	0.00	0.00
1	Need help with set up only	0.34	0.01	0.00
2	Need physical help	0.42^a	0.99^a	1.00^a

PHQ-9 Patient Health Questionnaire
^aThe level of the given indicator with the highest item-response probability. Residents belonging to the given subgroup had the highest probability of experiencing this level of the indicator
^bMeasures if the resident needs assistance to be transferred from one location to another
^cMeasures if the resident can walk in a room

ISSN: 1471-2318