Table 2: Associations between sociodemographic, health variables and single and multiple fall-related injury.

CharacteristicMenWomen
Single fallMultiple fallsMultiple fallsSingle fallMultiple fallsMultiple falls
RRR (95% CI)RRR (95% CI)AOR (95% CI)RRR (95% CI)RRR (95% CI)AOR

Age in years
 50-591 (Reference)1 (Reference)1 (Reference)1 (Reference)1 (Reference)1 (Reference)
 60-690.94 (0.75, 1.17)1.30 (0.97, 1.75)1.07 (0.76, 1.49)1.06 (0.85, 1.31)1.16 (0.90, 1.50)0.89 (0.62, 1.28)
 70-790.74 (0.53, 1.03)1.85 (1.31, 2.63) 1.15 (0.71, 1.86)1.26 (0.98, 1.63)1.65 (1.25, 2.19) 1.01 (0.53, 1.95)
 80+0.86 (0.52, 1.42)2.21 (1.35, 3.62)1.26 (0.49, 3.24)1.42 (0.99, 2.04)2.93 (2.10, 4.08) 2.20 (0.48, 10.14)
Education (High school +)1.25 (1.03, 1.53)0.83 (0.63, 1.08)---1.60 (1.30, 1.96) 0.86 (0.66, 1.12)---
Economic background
 Poor1 (Reference)1 (Reference)---1 (Reference)1 (Reference)1 (Reference)
 Medium1.09 (0.85, 1.38)1.03 (0.75, 1.42)0.86 (0.67, 1.09)0.66 (0.49, 0.89) 0.66 (0.46, 0.96)
 Rich0.79 (0.58, 1.06)0.86 (0.58. 1.26)1.00 (0.77, 1.29)0.83 (0.61, 1.13)0.88 (0.59, 1.31)
Residence (Urban)1.20 (0.99, 1.46)0.72 (0.56, 0.92)0.81 (0.60, 1.09)1.73 (1.43, 2.09) 1.09 (0.89, 1.34)---
Body mass index (obese)1.48 (0.93, 2.36)1.16 (0.60, 2.24)---1.21 (0.90, 1.61)1.43 (1.04, 1.97)1.37 (0.90, 2.06)
Tobacco use status
 Never1 (Reference)1 (Reference)1 (Reference)1 (Reference)1 (Reference)1 (Reference)
 Former1.57 (1.14, 2.16)1.71 (1.15, 2.56)1.77 (1.07, 2.92)1.12 (0.65, 1.94)2.40 (1.53, 3.77) 0.46 (0.10, 2.18)
 Current1.20 (0.92, 1.56)1.19 (0.85, 1.68)1.47 (0.96, 2.26)1.18 (0.84, 1.67)1.03 (0.68, 1.56)0.88 (0.43, 1.83)
Physical activity
 Low1 (Reference)1 (Reference)1 (Reference)1 (Reference)1 (Reference)---
 Moderate1.21 (0.93, 1.58)0.76 (0.50, 1.13)0.78 (0.51, 1.17)0.91 (0.72, 1.16)1.26 (0.95, 1.66)
 High1.12 (0.88, 1.44)1.52 (1.11, 2.06) 1.49 (1.08, 2.07)0.94 (0.72, 1.22)0.88 (0.63, 1.25)
Nutritional risk (yes)1.04 (0.79, 1.37)1.38, 0.99, 1.92)---0.85 (0.64, 1.12)1.59 (1.20, 2.16) 1.28 (0.85, 1.92)
Chronic conditions
 None1 (Reference)1 (Reference)1 (Reference)1 (Reference)1 (Reference)1 (Reference)
 One1.41 (1.12, 1.77)1.38 (1.01, 1.89)1.28 (0.90, 1.83)1.35 (1.08, 1.68)1.28 (0.96, 1.71)1.41 (0.91, 2.16)
 Two or more1.46 (1.13, 1.88)2.56 (1.90, 3.73) 1.76 (1.19, 2.60)1.96 (1.58, 2.45) 4.05 (3.17, 5.18) 3.67 (2.46, 5.45)
Urinary problems1.22 (0.99, 1.48)2.22 (1.67, 2.94) 1.58 (1.14, 2.19)1.15 (0.96, 1.38)2.19 (1.75, 2.76) 1.78 (1.26, 2.51)
Vision problem0.64 (0.25, 1.61)1.34 (0.58, 3.12)---1.65 (0.74, 3.68)1.13 (0.29, 3.30)---
Cataract1.53 (1.05, 2.2`)2.83 (1.95, 4.13) 2.02 (1.28, 3.19)1.77 (1.32, 2.37) 1.43 (1.00, 2.03)1.14 (0.65, 1.99)
Hearing problem1.25 (0.76, 2.07)2.06 (1.22, 3.47)1.35 (0.73, 2.51)1.25 (0.78, 2.01)2.05 (1.32, 3.18) 1.66 (0.87, 3.17)
Functional disability
 ADL & IADL=01 (Reference)1 (Reference)1 (Reference)1 (Reference)1 (Reference)1 (Reference)
 ADL & IADL=11.48 (1.17, 1.88) 1.44 (1.04, 2.01)1.14 (0.81, 1.61)1.06 (0.82, 1.39)1.37 (1.01, 1.88)0.99 (0.70, 1.39)
 ADL & IADL=2 or more1.31 (0.81, 2.11)3.33 (2.13, 5.20) 2.36 (1.43, 3.90) 1.41 (0.95, 2.08)2.32 (1.55, 3.49) 1.65 (1.05, 2.60)
Depression symptoms1.61 (1.24, 2.08) 2.22 (1.62, 3.03) 1.21 (0.84, 1.76)1.24 (0.96, 1.60)2.23 (1.70, 2.93) 1.80 (1.25, 2.59)
Sleep disturbance (3-5)1.43 (1.11, 1.84)2.06 (1.55, 2.75) 1.53 (1.06, 2.21)1.44 (1.08, 1.91)2.45 (1.78, 3.39) 1.15 (0.78, 1.69)
Sleep impairment (3-5)0.83 (0.62, 1.12)1.47 (1.08, 2.00)1.95 (1.35, 2.83) 1.22 (0.90, 1.65)2.67 (1.93, 3.68) 0.94 (0.63, 1.41)
Balance (no/<10s)1.73 (0.76, 3.95)0.71 (0.14, 3.58)---0.66 (0.30, 1.49)1.99 (1.10, 3.57)0.95 (0.29, 3.12)
Grip strength (weak)1.08 (0.92, 1.35)1.44 (1.08, 1.93)1.14 (0.83, 1.58)0.86 (0.69, 1.07)1.22 (0.92, 1.61)---
Cognitive function (low)0.88 (0.68, 1.13)1.24 (0.91, 1.70)---0.71 (0.55, 0.92)1.34 (1.00, 1.79)1.40 (1.00, 1.95)

RRR=relative risk ratio; AOR=adjusted odds ratio; P<0.001; P<0.01; P<0.05.