Cortexa research tool·biomedical·epidemiology

Epidemiology Nnt

Calculate Number Needed to Treat (NNT) or Number Needed to Harm (NNH), Absolute Risk Reduction (ARR), Relative Risk (RR), Relative Risk Reduction (RRR), and Odds Ratio (OR) from control and treatment event rates. NNT = 1/ARR. If treatment increases risk, reports NNH instead.

Livelast probed 2026-04-30 23:07Z· 115msCortexa

Status

The most recent probe succeeded. Safe to call from the agent today.

Last probed: 1d ago
Last success: 1d ago
Last latency: 115ms

Schema

JSON Schema the agent (or your API call) must match.

{
  "properties": {
    "control_rate": {
      "description": "Event rate in the control group [0, 1]",
      "type": "number"
    },
    "operation": {
      "description": "Operation type",
      "enum": [
        "nnt"
      ],
      "type": "string"
    },
    "treatment_rate": {
      "description": "Event rate in the treatment group [0, 1]",
      "type": "number"
    }
  },
  "required": [
    "operation",
    "control_rate",
    "treatment_rate"
  ],
  "type": "object"
}

Examples (1)

Default Epidemiology Nnt call

public-safeinput

{
  "control_rate": 1,
  "operation": "",
  "treatment_rate": 1
}

Expected response keys: success

Anonymous-safe example. Rate-limited; no sign-in required.

Identifiers

Catalog ID: tu_Epidemiology_nnt
Tool name: Epidemiology_nnt
Added: 2026-04-30 22:47Z
Tags: tooluniverse

Back to catalog