Table 12 Missingness summary for principal metrics
Metric | Total N | Observed N | Missing N | Missing % |
|---|---|---|---|---|
BF01 breach frequency (incidents/year) | 121 | 118 | 3 | 2.5 |
IRR01 incident recurrence rate (%) | 121 | 115 | 6 | 5.0 |
MTTD01 mean time to detect (days) | 121 | 110 | 11 | 9.1 |
MTTC01 mean time to contain (days) | 121 | 108 | 13 | 10.7 |
MTTR01 mean time to remediate (days) | 121 | 112 | 9 | 7.4 |
SLA01 SLA compliance (%) | 121 | 109 | 12 | 9.9 |
VIS01 exposure visibility (0–100) | 121 | 119 | 2 | 1.7 |
AUTO01 automation coverage (0–100) | 121 | 117 | 4 | 3.3 |
TI01 threat intelligence use (0–100) | 121 | 114 | 7 | 5.8 |
KRI01 KRI usage in decisions (0–100) | 121 | 113 | 8 | 6.6 |
CONF01 stakeholder satisfaction (Likert 1–5) | 121 | 116 | 5 | 4.1 |
EFF01 analyst effort per incident (hours) | 121 | 104 | 17 | 14.0 |