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Table 4 Multiparous deliveries: Details of alarms and action taken

From: The CUSUM chart method as a tool for continuous monitoring of clinical outcomes using routinely collected data

 

Alarm details

Conclusion and Action

Phase 1

1 – 393

Upward alarm at 393rd delivery

Rate: 4 in 393 (1.02%)

Increase in rate of low Apgar scores

Look for cause and take corrective action

Continue monitoring (p 0 = 0.0029, h + = 1)

Phase 2

394 – 811

Upward alarm at 811th delivery

Rate: 4 in 418 (0.96%)

Increase in rate of low Apgar scores Look for cause and take corrective action

Continue monitoring (p 0 = 0.0029, h + = 1)

Phase 2

811 – end

No alarm

Rate: 3 in 1251 (0.24%)

Continue monitoring (p 0 = 0.0029, h + = 1)