Table 1. Characteristics of pregnant women participating in the study

Characteristics Without music (n=89) m±sd or n(%) Music (n=88) m±sd or n(%) Statistic
Age 30.0±4.60 30.4±4.00 t=-0.61
p=0.54
Education
 ≤high school 38(42.70) 37(42.05) X=0.007
 >high school 51(57.30) 51(57.95) p=0.93
Occupation
 Housewife 23(25.84) 17(19.32) X=1.07
 Working 66(74.16) 71(80.68) p=0.3
Ethnic
 Kinh 86(96.63) 87(98.86) X=0.04
 Hoa 2(2.25) 1(1.14) p=0.56
Resident
 Ho Chi Minh city 55(61.8) 52(59.09) X=0.14
 Others 34(38.2) 36(40.91) p=0.71
Religion
 Have 31(35.96) 28(31.82) X=0.23
 No 57(64.04) 60(68.18) p=0.63
Height 157.4±5.59 156.5±4.59 t=1.14
p=0.25
Weight 66.2±8.31 64.4±7.51 t=1.52
p=0.13
Blood pressure
 Systolic blood pressure 109.0±9.11 110.9±10.38 t=-1.28
p=0.20
 Diastolic blood pressure 68.5±7.70 68.8±7.66 t=-0.31
p=0.75
Gestational age
 33-34 week 16(19.6) 23(19.4) X=1.82
 35-36 week 32(30.7) 29(30.3) p=0.609
 37-38 week 33(31.7) 30(31.3)
 ≥39 week 8(7) 6(6.82)
Prenatal
 Nulliparous 44(49.44) 40(45.45) X=0.28
 Multiparous 45(50.56) 48(54.55) p=0.596
Join prenatal classes
 No 82(92.14) 85(96.59) X=1.65
 Yes 7(7.86) 3(3.41) p=0.199
Routine antenatal check-up
 Not often 3(3.37) 0 X=3.02
 Regular 86(96.73) 88(100) p=0.082
Previously performed Non-stress test
 Yes 50(56.18) 44(50) X=0.68
 No 39(42.82) 44(50) p=0.410
t: t-test, X: Chi-square