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Table 1 Characteristics of the participants at baseline [mean ± SD or n (%)]

From: Efficacy and safety of umbilical cord mesenchymal stem cells in treatment of cesarean section skin scars: a randomized clinical trial

 

All participants

Placebo group

Low-dose group

High-dose group

F/χ2

p value

Age (years)

28.04 ± 3.39

28.01 ± 3.82

28.34 ± 3.05

27.79 ± 3.34

0.197

0.821

Age group

 21–27

45 (50.0)

17 (56.7)

12 (40.0)

16 (53.3)

1.867

0.500

 28–35

45 (50.0)

13 (43.3)

18 (60.0)

14 (46.7)

  

Gestation (week)

39.47 ± 1.10

39.50 ± 1.07

39.30 ± 1.25

39.61 ± 0.97

0.603

0.550

Gestation group

 37–39 week

59 (65.6)

20 (66.7)

20 (66.7)

19 (63.3)

0.098

0.999

 40–42 week

31 (34.4)

10 (33.3)

10 (33.3)

11 (36.7)

  

Operation time (min)

39.20 ± 10.45

39.17 ± 12.48

38.48 ± 7.87

39.93 ± 10.81

0.137

0.873

Incision length (cm)

14.53 ± 1.07

14.36 ± 1.23

14.73 ± 0.93

14.52 ± 1.05

0.881

0.418

Pigmentation

165.37 ± 73.15

167.99 ± 69.86

160.07 ± 81.14

168.13 ± 70.00

0.116

0.890

Erythema

265.43 ± 77.03

264.43 ± 77.75

271.99 ± 84.63

259.69 ± 69.93

0.188

0.829