BioMed Research International / 2017 / Article / Tab 3

Research Article

Chronic Health Conditions as a Risk Factor for Falls among the Community-Dwelling US Older Adults: A Zero-Inflated Regression Modeling Approach

Table 3

Risk factors of falls among community-dwelling US older adults: zero-inflated regression modeling, BRFSS 2014.

Explanatory variables (reference)Zero-inflated Poisson Zero-inflated negative binomial

Count partRR (95% CI)Standard
error
RR (95% CI)Standard
error

Chronic health conditions
Heart attack1.13 (1.10–1.16)0.01221.16 (1.11–1.21)0.0219
Angina1.08 (1.05–1.10)0.01181.17 (1.12–1.22)0.0209
Stroke1.32 (1.29–1.35)0.01151.50 (1.43–1.57)0.0249
Asthma1.15 (1.12–1.17)0.01131.22 (1.18–1.27)0.0201
COPD1.10 (1.08–1.13)0.01101.13 (1.08–1.17)0.0203
CKD1.18 (1.15–1.21)0.01321.24 (1.18–1.31)0.0276
Arthritis1.17 (1.15–1.19)0.00951.39 (1.34–1.44)0.0176
Depression1.68 (1.65–1.71)0.00892.12 (2.05–2.20)0.0186
Diabetes1.11 (1.09–1.13)0.00931.18 (1.14–1.22)0.0177

Sociodemographic composition
Age group 80+ (65–79)0.89 (0.87–0.90)0.01080.94 (0.91–0.98)0.0191
Black (White)0.74 (0.71–0.77)0.02230.70 (0.65–0.75)0.0355
Hispanic (White)0.89 (0.85–0.93)0.02310.85 (0.78–0.92)0.0401
Other race (White)1.10 (1.06–1.14)0.01901.09 (1.01–1.18)0.0394
Female (male)0.76 (0.74–0.77)0.00900.72 (0.70–0.75)0.0184
Unmarried/single (married/living-in)0.98 (0.96–0.99)0.00931.06 (1.03–1.10)0.0169
Unemployed (employed)1.11 (1.08–1.14)0.01201.14 (1.09–1.19)0.0216
Income <$50,000/year (≥$50,000/year)1.17 (1.14–1.19)0.01051.11 (1.08–1.14)0.0154
Smoking (no smoking)1.22 (1.19–1.25)0.01301.13 (1.07–1.19)0.0281

Logit partOR (95% CI)Standard
error
OR (95% CI)Standard
error

Chronic health conditions
Heart attack0.92 (0.88–0.97)0.0253
Angina0.90 (0.86–0.94)0.0244
Stroke0.71 (0.68–0.75)0.02670.44 (0.30–0.64)0.1903
Asthma0.88 (0.85–0.93)0.0224
Cancer0.88 (0.84–0.92)0.01900.64 (0.53–0.79)0.1015
CKD0.84 (0.79–0.89)0.02980.56 (0.36–0.87)0.2216
Arthritis0.65 (0.63–0.68)0.01610.37 (0.31–0.44)0.0901
Depression0.55 (0.53–0.58)0.01890.22 (0.14–0.33)0.2171
Diabetes0.83 (0.79–0.85)0.01840.60 (0.50–0.72)0.0999

Sociodemographic composition
Age group 80+ (65–79)0.74 (0.71–0.77)0.01980.14 (0.07–0.26)0.3274
Black (White)1.21 (1.12–1.30)0.03701.56 (1.14–2.14)0.1618
Hispanic (White)1.19 (1.10–1.29)0.04011.58 (1.16–2.15)0.1579
Other race (White)1.13 (1.05–1.22)0.03771.73 (1.31–2.29)0.1431
Female (male)0.83 (0.80–0.86)0.01650.33 (0.27–0.40)0.1059
Unmarried/single (married/living-in)0.86 (0.83–0.89)0.01700.75 (0.64–0.88)0.0827
Unemployed (employed)1.34 (1.11–1.62)0.0950
Income <$50,000/year (≥$50,000/year)1.06 (1.03–1.10)0.0181
Smoking (no smoking)1.15 (1.03–1.10)0.02581.68 (1.38–2.06)0.1030

Note. Data source: 2014 BRFSS (Behavioral Risk Factor Surveillance System).
COPD = Chronic Obstructive Pulmonary Disorder.
CKD = Chronic Kidney Condition.
CI = Confidence Interval.
RR = relative risk; OR = odds ratio.

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