Table 2.

Adjusted odds ratios (95% confidence intervals) of late fetal death compared with maternal characteristics of women recorded in the Swedish birth register from 1983 to 1992

Variable	Odds ratio (95% CI)
Maternal age (years):
15-19	1.0 (0.8 to 1.2)
20-34*	1.0
35-44	1.6 (1.4 to 1.7)
Parity:
No previous births	1.4 (1.3 to 1.5)
One or more previous births*	1.0
Smoking (cigarettes per day):
0*	1.0
1-9	1.3 (1.2 to 1.4)
⩾10	1.7 (1.6 to 1.9)
Maternal height (cm):
<154	1.2 (0.9 to 1.5)
155-174*	1.0
⩾175	0.9 (0.7 to 1.0)
Hypertensive disorders:
None*	1.0
Severe pre-eclampsia	3.1 (2.4 to 4.0)
Other	1.1 (0.9 to 1.4)
Type of birth:
Singleton*	1.0
Twin	2.8 (2.5 to 3.3)

^*Reference group.