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Table 6 Association between PA variables and the risk of incident elevated blood- glucose

From: Longitudinal associations between physical activity and five risk factors of metabolic syndrome in middle-aged adults in Germany

No. with incident elevated BG (N = 47, 7.3%)

 

No. at risk (N = 641)

No. incident elevated BG (% of No. at risk)

Model 1 adjusted Hazard Ratio (95% CI)

p-value

Habitual PA level at baseline [min/week]

 Low (< 75)

33

2 (0.3)

ref

 

 Medium (75–149)

143

11 (1.7)

2.12 (0.46–9.85)

0.338

 High (≥ 150)

465

34 (5.3)

1.39 (0.33–5.82)

0.656

Sports-related PA level at baseline [min/week]

 Low (< 75)

345

31 (4.8)

ref

 

 Medium (75–149)

142

10 (1.6)

0.97 (0.46–2.06)

0.942

 High (≥ 150)

154

6 (0.9)

0.54 (0.22–1.32)

0.176

Sports-related intensity level at baseline [METh/week] {1}

 Not intensively active (< 8.3)

349

31 (4.8)

ref

 

 Moderately intensively active (8.3–16.5)

137

11 (1.7)

1.13 (0.55–2.28)

0.745

 Highly intensively active (≥ 16.6)

154

5 (0.7)

0.50 (0.19–1.30)

0.154

Change in sports-related PA over time [min/week] {26}

 Stable inactive (< 150 – < 150)

333

34 (5.3)

ref

 

 Quits activity (≥ 150 – < 150)

52

5 (0.7)

0.97 (0.38–2.50)

0.950

 Starts activity (< 150 – ≥ 150)

144

6 (0.9)

0.43 (0.17–1.04)

0.062

 Stable active (≥ 150 – ≥ 150)

86

1 (0.1)

0.13 (0.02–0.92)

0.042

Change in sports-related intensity level over time [METh/week] {6}

 Stable low (< 16.6 – < 16.6)

348

32 (5.0)

ref

 

 Decreasing (≥ 16.6 – < 16.6)

54

4 (0.6)

1.03 (0.36–2.95)

0.962

 Increasing (< 16.6 – ≥ 16.6)

135

10 (1.6)

0.76 (0.36–1.58)

0.457

 Stable high (≥ 16.6 – ≥ 16.6)

98

1 (0.1)

0.13 (0.02–0.99)

0.049

  1. BG blood-glucose, CI confidence interval, METh metabolic equivalent hours, min minutes, N number of participants, No. Number, PA physical activity, ref reference group, SES socio-economic status. Model 1: adjusted for age, sex und SES. Model 2 not reported due to small sample size of N 47 which does not allow for adjustment of more than three confounding variables. {} indicates number of N missing. Significant values (p < 0.05) are in [bold]; significant values after Bonferroni correction for multiple testing are indicated by [*]