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Table 1 Characteristics of respondents

From: A postal survey of maternal sleep in late pregnancy

Characteristic

Category

n (%) or mean (SD)

Maternal age (missing=3)

<20

6 (2.5)

20-34

138 (57.3)

>35

97 (40.3)

Ethnicity (missing=3)

European

150 (62.2)

Other

59 (24.5)

Maori

17 (7.1)

Pacific

15 (6.2)

Marital status (missing=40)

Married

168 (82.3)

De facto

28 (13.7)

Single

8 (3.9)

Current smoker (missing=4)

Yes

10 (4.2)

Sleep with partner (missing=0)

Yes

200 (82.0)

Gestation (weeks) (missing=11)

 

35.0 (2.7)

Gestation, categorised (weeks)

28 to<32

25 (10.8)

32 to <34

49 (21.1)

34 to <36

42 (18.1)

36 to <38

73 (31.5)

≥38

43 (18.5)

Parity (missing=6)

0

108 (45.4)

1

87 (36.6)

2

35 (14.7)

≥3

8 (3.4)

Pre-pregnancy BMI, calculated (missing=19)

 

23.8 (4.5)

Pre-pregnancy BMI categorised (missing=19)

<18.5

6 (2.7)

18.5 – 24.9

159 (70.7)

25.0 – 29.9

36 (16.0)

≥30

24 (10.7)