Skip to main content
. 2021 Mar 15;8(3):e21757. doi: 10.2196/21757

Table 1.

Participants’ baseline characteristics.

Characteristics Prepandemic training group In-person training group Test group P valuea
Sample size, n

86 36 38 N/Ab
Demographic characteristics

Age (years), mean (SD)

45.46 (11.71) 47.14 (10.98) 49.77 (11.17) .15

Male, n

26 11 11 .99

Length of education (years), mean (SD)

16.44 (2.63) 15.47 (2.81) 15.61 (2.91) .19

Previous meditation experience, n

16 3 10 .14
Race, n

Chinese 79

36 36 N/A

Malay 2

0 1 N/A

Indian 3

0 1 N/A

Other 2

0 0 N/A
Clinical variables, mean (SD)

Perceived Stress Scale score 20.17 (6.67) 21.19 (8.07) 19.26 (6.84) .50

Pittsburgh Sleep Quality Inventory score 6.29 (2.96) 5.58 (2.98) 6.82 (3.27) .22

Total sleep time (minutes) 406.69 (55.57) 402.38 (49.69) 405.23 (68.98) .93


Sleep onset latency (minutes) 23.64 (25.76) 17.12 (12.66) 27.09 (28.72) .20

aP values were derived from the appropriate statistical test (ie, analysis of variance/Chi-square test) for comparing all three groups.

bN/A: not applicable.