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Table 1 Demographic and baseline characteristics of study participants

From: Ukumela impilo randomised trial: preliminary findings of height-adjustable sit-to-stand workstations on health outcomes of South African office workers

Ā 

Combined sample (nā€‰=ā€‰62)

Intervention group (nā€‰=ā€‰44)

Control group (nā€‰=ā€‰18)

p-value for model

Age (years)

40.32ā€‰Ā±ā€‰10.12

41.88ā€‰Ā±ā€‰9.37

36.31ā€‰Ā±ā€‰11.15

0.247

Female (%)

49 (79.03)

38 (77.55)

11 (22.45)

0.027

Current smokers (%)

12 (100)

7 (58.33)

5 (41.67)

0.134

Education Level

Ā Ā Ā Ā 

Completed high school (%)

11 (18.33)

67 (63.64)

4 (36.36)

<ā€‰0.001

College diploma (%)

15 (25.00)

8 (53.33)

7 (46.67)

<ā€‰0.001

University degree (%)

14 (23.33)

10 (71.43)

4 (28.57)

<ā€‰0.001

Postgraduate qualification (%)

20 (33.33)

17 (85.00)

3 (15.00)

<ā€‰0.001

Cardiometabolic Outcomes

Ā Ā Ā Ā 

BMI (kg/m2)

30.39ā€‰Ā±ā€‰6.47

31.32ā€‰Ā±ā€‰7.03

28.13ā€‰Ā±ā€‰4.21

<ā€‰0.001

WC (cm)

88.56ā€‰Ā±ā€‰12.23

89.93ā€‰Ā±ā€‰11.87

85.22ā€‰Ā±ā€‰12.80

<ā€‰0.001

Overweight (%)

21 (33.87)

15 (24.19)

6 (9.68)

<ā€‰0.001

Obesity (%)

29 (46.77)

21 (33.87)

8 (12.90)

<ā€‰0.001

SBP (mmHg)

114.65ā€‰Ā±ā€‰14.56

112.55ā€‰Ā±ā€‰14.05

119.81ā€‰Ā±ā€‰14.88

<ā€‰0.001

DBP (mmHg)

81.72ā€‰Ā±ā€‰8.87

81.78ā€‰Ā±ā€‰8.75

81.56ā€‰Ā±ā€‰9.42

<ā€‰0.001

Hypertension (%)

38 (61.29)

27 (43.44)

11 (17.74)

<ā€‰0.001

RBG (mmol/Lāˆ’ā€‰1)

6.70ā€‰Ā±ā€‰2.71

6.81ā€‰Ā±ā€‰3.11

6.43ā€‰Ā±ā€‰1.36

<ā€‰0.001

HbA1c (%)

6.11ā€‰Ā±ā€‰1.15

6.16ā€‰Ā±ā€‰1.29

5.98ā€‰Ā±ā€‰0.67

<ā€‰0.001

Diabetes (%)

25 (40.32)

16 (25.81)

9 (14.51)

<ā€‰0.001

Triglycerides (mmol/Lāˆ’ā€‰1)

1.52ā€‰Ā±ā€‰0.66

1.53ā€‰Ā±ā€‰0.66

1.49ā€‰Ā±ā€‰0.66

<ā€‰0.001

HDL (mmol/Lāˆ’ā€‰1)

1.33ā€‰Ā±ā€‰0.34

1.37ā€‰Ā±ā€‰0.36

1.22ā€‰Ā±ā€‰0.26

0.082

LDL (mmol/Lāˆ’ā€‰1)

1.70ā€‰Ā±ā€‰1.25

1.63ā€‰Ā±ā€‰1.33

1.88ā€‰Ā±ā€‰1.01

<ā€‰0.001

Total Cholesterol (mmol/Lāˆ’ā€‰1)

4.09ā€‰Ā±ā€‰1.23

4.25ā€‰Ā±ā€‰1.20

3.69ā€‰Ā±ā€‰1.25

<ā€‰0.001

Accelerometry data (median IQR)

Ā Ā Ā Ā 

Sleeping time (mins/day)

352.19 (233.51ā€“392.23)

364.89 (243.24ā€“393.51)

319.05 (189.67ā€“389.95)

<ā€‰0.001

Sedentary time (mins/day)

89.12 (73.24ā€“107.51)

97.52 ( 80.51- 109.74)

79.65 (53.58ā€“90.67)

<ā€‰0.001

LPA (mins/day)

111.49 (84.96ā€“130.08)

111.49 (96.22ā€“133.76)

103.72 (67.72ā€“129.24 )

<ā€‰0.001

MVPA (mins/day)

24.64 (10.27ā€“39.23)

24.64 (11.68ā€“39.01)

24.18 (9.15ā€“65.43)

<ā€‰0.001

  1. Body Mass Index (BMI); Diastolic blood pressure (DBP); Systolic blood pressure (SBP); Waist Circumference (WC); Random blood glucose (RBG); Glycated haemoglobin (HbA1c); high-density lipoprotein cholesterol (HDL); low-density lipoprotein cholesterol (LDL); Light physical activity (LPA); moderate to vigorous physical activity (MVPA)