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. 1999 May 22;318(7195):1414.

Table.

Proportions of cases (babies with neonatal encephalopathy) and controls having complicated* and uncomplicated deliveries in Badawi et al’s study

No (%) of cases (n=164) No (%) of controls (n=400) Unadjusted odds ratio (95% CI)
Complicated delivery 79 (48) 101 (25) 2.75 (1.88 to 4.02)
Uncomplicated delivery 85 (52) 299 (75) 0.36 (0.25 to 0.53)
1-150

Complicated deliveries: instrumental deliveries, emergency caesarean sections, breech manoeuvres. 

1-151

Uncomplicated deliveries: spontaneous vaginal deliveries, induced vaginal deliveries, elective caesarean sections.