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Table 3 Rate per 1000 person-years and hazard ratios (HRs) for mortality, emergency hospital admission, and care home admission by cohabitation and co-resident chronic disease

From: Impact of household characteristics on patient outcomes post hip fracture: a Welsh nationwide observational cohort study

Outcome

Exposure

Crude rate

n/N

Rate per 1000 person-years

(95% CIa)

Model 1

Unadjusted HR

(95%CI)

Model 2

Partially adjusted HRb

(95%CI)

Model 3

Fully adjusted HRc

(95%CI)

30-day emergency hospital admission

Coresident: 0–1 long-term conditions & no dementia

176/1970

1364.7 (1170.5–1581.9)

Reference

Reference

Reference

Coresident: 2–3 long-term conditions & no dementia

163/1509

1429.5 (1218.5–1666.6)

1.05 (0.85–1.30)

1.02 (0.83–1.27)

0.97 (0.78–1.20)

Coresident: 4 + long-term conditions & no dementia

203/1657

1337.6 (1159.9–1534.8)

1.24 (1.03–1.49)

0.92 (0.75–1.12)

0.84 (0.69–1.03)

Coresident: dementia

20/182

1450.8 (886.2–2240.7)

1.06 (0.67–1.69)

0.97 (0.61–1.54)

0.87 (0.54–1.38)

Lives alone

781/6771

1507.5 (1403.7–1617.1)

1.10 (0.94–1.30)

1.02 (0.86–1.20)

0.96 (0.81–1.14)

One-year care home admission

Coresident: 0–1 long-term conditions & no dementia

89/1970

55.5 (44.6–68.3)

Reference

Reference

Reference

Coresident: 2–3 long-term conditions & no dementia

111/1509

79.2 (65.1–95.4)

1.42 (1.07–1.88)

1.38 (1.04–1.83)

1.32 (1.00–1.74)

Coresident: 4 + long-term conditions & no dementia

153/1657

82.4 (69.9–96.6)

1.47 (1.14–1.91)

1.27 (0.98–1.65)

1.20 (0.93–1.56)

Coresident: dementia

32/182

204.3 (139.7–288.4)

3.52 (2.35–5.27)

2.59 (1.73–3.88)

2.38 (1.59–3.57)

Lives alone

1129/6771

193.2 (182.1–204.8)

3.34 (2.69–4.15)

2.33 (1.88–2.90)

2.26 (1.81–2.81)

One-year mortality

Coresident: 0–1 long-term conditions & no dementia

189/1970

120.5 (104.0–139.0)

Reference

Reference

Reference

Coresident: 2–3 long-term conditions & no dementia

195/1509

141.8 (122.6–163.2)

1.18 (0.96–1.44)

1.13 (0.93–1.38)

1.06 (0.87–1.29)

Coresident: 4 + long-term conditions & no dementia

271/1657

149.9 (132.5–168.8)

1.24 (1.03–1.49)

1.11 (0.92–1.33)

0.99 (0.82–1.20)

Coresident: dementia

31/182

189.9 (129.0–269.6)

1.57 (1.07–2.30)

1.29 (0.88–1.88)

1.11 (0.76–1.62)

Lives alone

1071/6771

174.0 (163.7–184.7)

1.44 (1.23–1.68)

1.19 (1.02–1.39)

1.12 (0.95–1.31)

  1. aPoisson confidence intervals
  2. bAdjusted for hip fracture patient characteristics: age (years) continuous, age (years) quadratic, sex, socioeconomic position (SEP)
  3. cAdjusted for hip fracture patient characteristics: age (years) continuous, age (years) quadratic, sex, socioeconomic position (SEP), number of long-term conditions