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

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

  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) 0.74a 0.61a 0.62a
  1 Yes (several days/everyday) 0.22 0.34 0.31
  2 PHQ-9 ≥ 10 0.04 0.06 0.07
 Resistanceb
  0 Independent 0.56a 0.00 0.00
  1 With set-up only 0.33 0.03 0.00
  2 Need physical assistance 0.11 0.96a 1.00a
 Ambulationc
  0 Independent 0.53a 0.05 0.01
  1 With assistive device 0.18 0.13 0.01
  2 Cannot walk 0.29 0.82a 0.98a
 Incontinence
  0 None 0.67a 0.30 0.03
  1 Urinary incontinence only 0.22 0.38a 0.08
  2 Bowel incontinence 0.11 0.32 0.89a
 Loss of weight
  0 None 0.98a 0.98a 0.96a
  1 ≥ 5% past 3 mo./ ≥10% past 6 mo. 0.02 0.02 0.04
 Nutritional approach
  0 Regular diet 0.90a 0.85a 0.49a
  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 0.42a 0.99a 1.00a
  1. PHQ-9 Patient Health Questionnaire
  2. 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
  3. bMeasures if the resident needs assistance to be transferred from one location to another
  4. cMeasures if the resident can walk in a room