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Table 2 Odds ratios for recurrent falls according to four levels of each physical activity

From: Physical activity and recurrent fall risk in community-dwelling Japanese people aged 40–74 years: the Murakami cohort study

 

Quartiles of total PA (MET-hr/day)

  P for trend

 

Q1

Q2

Q3

Q4

 

Cumulative incidence

50/1,841 (2.7%)

69/1,929 (3.6%)

80/1,893 (4.2%)

109/1,898 (5.7%)

 

 Unadjusted OR (95% CI)

1 (ref)

1.33 (0.92-1.92)

1.58 (1.10–2.26)

1.91 (1.35–2.71)

< 0.0001

 Age-adjusted OR (95% CI)

1 (ref)

1.26 (0.87-1.83)

1.42 (0.99–2.05)

1.91 (1.35–2.71)

< 0.0001

 Adjusted OR (1)a (95% CI)

1 (ref)

1.25 (0.86-1.82)

1.46 (1.00–2.12)

1.89 (1.29–2.78)

0.0002

 Adjusted OR (2)b (95% CI)

1 (ref)

1.26 (0.86-1.84)

1.48 (1.01–2.16)

1.96 (1.33–2.88)

0.0002

 

Four levels of leisure-time PA (MET-hr/day)

P for trend

  

Tertiles for scores > 0

 
 

0

Low

Medium

High

 

Cumulative incidence

106/2,425 (4.4%)

66/1,679 (3.9%)

57/1,711 (3.3%)

79/1,746 (4.5%)

 

 Unadjusted OR (95% CI)

1 (ref)

0.90 (0.65-1.23)

0.75 (0.54–1.05)

0.85 (0.61–1.17)

0.8342

 Age-adjusted OR (95% CI)

1 (ref)

0.85 (0.62-1.16)

0.65 (0.46–0.90)

0.85 (0.61–1.17)

0.1056

 Adjusted OR (1)c (95% CI)

1 (ref)

0.94 (0.68-1.29)

0.71 (0.50–1.01)

0.90 (0.64–1.26)

0.3005

 Adjusted OR (2)b (95% CI)

1 (ref)

0.92 (0.67-1.28)

0.70 (0.49–0.99)

0.89 (0.63–1.25)

0.2459

 

Quartiles of non-leisure-time PA (MET-hr/day)

P for trend

 

Q1

Q2

Q3

Q4

 

Cumulative incidence

51/1,852 (2.8%)

75/1,881 (4.0%)

69/1,929 (3.6%)

113/1,899 (6.0%)

 

 Unadjusted OR (95% CI)

1 (ref)

1.47 (1.02-2.11)

1.31 (0.91–1.89)

2.17 (1.55–3.04)

< 0.0001

 Age-adjusted OR (95% CI)

1 (ref)

1.48 (1.03-2.12)

1.30 (0.90–1.87)

2.17 (1.55–3.04)

< 0.0001

 Adjusted OR (1)d (95% CI)

1 (ref)

1.43 (0.99-2.06)

1.20 (0.82–1.76)

2.13 (1.46–3.09)

0.0002

 Adjusted OR (2)b (95% CI)

1 (ref)

1.44 (0.999-2.08)

1.22 (0.83–1.78)

2.14 (1.47–3.11)

0.0001

  1. Cut-off values are 37.8, 44.1, and 55.0 for men’s total PA quartiles; 37.8, 42.8, and 51.4 for women’s total PA quartiles; 0.9 and 3.0 for men’s leisure-time PA tertiles; 1.0 and 3.2 for women’s leisure-time PA tertiles; 15.9, 24.2, and 38.6 for men’s non-leisure-time PA quartiles; and 17.7, 24.6, and 36.1 for women’s non-leisure-time PA quartiles
  2. OR odds ratio, PA physical activity
  3. aAdjusted for sex, age, marital status, education, occupation, body mass index, smoking habit, and alcohol consumption
  4. bFurther adjusted for disease history in addition to covariates in Model 1
  5. cAdjusted for sex, age, marital status, education, occupation, body mass index, smoking habit, alcohol consumption, and non-leisure-time PA
  6. dAdjusted for sex, age, marital status, education, occupation, body mass index, smoking habit, alcohol consumption, and leisure-time PA