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. 2019 Nov 11;9(11):e031379. doi: 10.1136/bmjopen-2019-031379

Table 2.

Adjusted summary rate ratio of home-time by predictor variables using multivariable zero-inflated negative binomial model

Predictor variables Median home-time
(Q1,Q3)
Mean home-time
(SD)
aRR
(95% CI)
Age categories (years)
 21–60 68 (12,84) 53 (35) Reference
 61–70 60 (0,83) 48 (36) 0.97 (0.95 to 0.99)
 71–80 46 (0,80) 42 (36) 0.94 (0.92 to 0.95)
 ≥80 12 (0,71) 32 (35) 0.89 (0.87 to 0.91)
Sex
 Female 40 (0,79) 40 (36) Reference
 Male 53 (0,82) 45 (36) 1.01 (0.99 to 1.02)
mRS category
 mRS 0 84 (81,87) 80 (16) Reference
 mRS 1 84 (79,86) 77 (19) 0.96 (0.93 to 0.98)
 mRS 2 81 (68,85) 73 (21) 0.92 (0.90 to 0.94)
 mRS 3 57 (29,76) 50 (29) 0.60 (0.59 to 0.62)
 mRS 4 9 (0,45) 23 (27) 0.23 (0.22 to 0.24)
 mRS 5 0 (0,3) 7 (17) 0.05 (0.04 to 0.06)
Home location
 Large urban 46 (0,81) 42 (36) Reference
 Medium population 50 (0,82) 43 (37) 1.04 (1.02 to 1.07)
 Small population 53 (0,82) 44 (37) 1.02 (1.00 to 1.04)
Neighbourhood income quintile
 Lowest 43 (0,80) 41 (36) Reference
 Next to lowest 46 (0,81) 42 (36) 1.02 (0.99 to 1.04)
 Middle 49 (0,81) 43 (36) 1.02 (1.00 to 1.04)
 Next to highest 50 (0,81) 43 (36) 1.02 (0.99 to 1.04)
 Highest 50 (0,82) 43 (36) 1.02 (1.00 to 1.05)
Charlson comorbidity index
 Score <2 62 (0,83) 49 (36) Reference
 Score ≥2 30 (0,76) 36 (36) 0.91 (0.90 to 0.93)
Preadmission dependence
 Dependent 7 (0,68) 30 (35) Reference
 Independent 56 (0,82) 46 (36) 1.06 (1.04 to 1.08)
Stroke severity
 Mild (NIHSS <5) 78 (46,85) 62 (30) Reference
 Severe (NIHSS ≥5) 5 (0,63) 29 (34) 0.82 (0.80 to 0.83)

aRR, adjusted rate ratio; mRS, modified Rankin Scale; NIHSS, National Institutes of Health Stroke Scale; Q1,Q3, first and third quartile.