Table 1

Patient demographics and waiting time from arrival to assessment by phase

VariablePhase 1Phase 2Phase 3Phase 4Phase 5
Dates of collection9 September–
11 November 2012
15 December–
31 December 2014
15 September–
19 November 2015
1 December 2016–
28 February 2017
1 September–
31 October 2017
Number of complete time interval observations926162770869542
Number of hospital deliveries1351405146515891008
Age (years)28.1 (5.7)30.0 (5.8)28.2 (5.8)28.8 (7.4)30.0 (5.4)
Estimated GA (weeks)39+1 (3.5)39+5 (2.4)39+2 (2.4)37+5 (4.3)37.2 (4.9)
Gravida2.6 (1.6)3.1 (1.7)2.9 (1.8)2.9 (1.9)3.0 (1.9)
Para1.4 (1.5)1.2 (1.6)1.3 (1.4)1.3 (1.5)1.6 (2.3)
Median (IQR) waiting time (min)*40 (15,100)29 (11,60)7 (2,19)5 (2,8)5 (2,6)
Minimum (min)00000
Maximum  (min)15455307901107236
  • Data for age, gestational age, gravida and parity are presented as mean (SD).

  • Phase 1 included 1082 patients evaluated from 9 September to 11 November 2012.8

  • Phase 2 included 162 patients evaluated from 15 December to 31 December 2014.

  • Phase 3 included 784 patients evaluated from 15 September to 19 November 2015.

  • Phase 4 included 901 patients evaluated from 1 December 2016 to 28 February 2017.

  • Phase 5 included 552 patients evaluated from 1 September to 31 October 2017.

  • GA, gestational age.