{
  "scenario": "fictional workshop kits: first recorded return event; start time zero for all",
  "unit": "elapsed days",
  "administrative_cutoff": 6,
  "rows": [
    {
      "id": "K1",
      "duration": 1,
      "event": 1
    },
    {
      "id": "K2",
      "duration": 2,
      "event": 0
    },
    {
      "id": "K3",
      "duration": 2,
      "event": 1
    },
    {
      "id": "K4",
      "duration": 4,
      "event": 0
    },
    {
      "id": "K5",
      "duration": 5,
      "event": 1
    },
    {
      "id": "K6",
      "duration": 6,
      "event": 0
    }
  ],
  "censor_reason": {
    "K2": "observation stops at day 2 without recorded return",
    "K4": "observation stops at day 4 without recorded return",
    "K6": "administrative cutoff day 6 without recorded return"
  },
  "tie_convention": "events use all still observed immediately before time; same-time censors leave after event denominator",
  "kaplan_meier": {
    "table": [
      {
        "time": 1,
        "at_risk_before": 6,
        "events": 1,
        "censors": 0,
        "survival": "5/6"
      },
      {
        "time": 2,
        "at_risk_before": 5,
        "events": 1,
        "censors": 1,
        "survival": "2/3"
      },
      {
        "time": 4,
        "at_risk_before": 3,
        "events": 0,
        "censors": 1,
        "survival": "2/3"
      },
      {
        "time": 5,
        "at_risk_before": 2,
        "events": 1,
        "censors": 0,
        "survival": "1/3"
      },
      {
        "time": 6,
        "at_risk_before": 1,
        "events": 0,
        "censors": 1,
        "survival": "1/3"
      }
    ],
    "median_within_observed_range": 5
  },
  "wrong_complete_case_deletion": {
    "table": [
      {
        "time": 1,
        "at_risk_before": 3,
        "events": 1,
        "censors": 0,
        "survival": "2/3"
      },
      {
        "time": 2,
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        "censors": 0,
        "survival": "1/3"
      },
      {
        "time": 5,
        "at_risk_before": 1,
        "events": 1,
        "censors": 0,
        "survival": "0"
      }
    ],
    "median_within_observed_range": 2
  },
  "all_censored_counterexample": {
    "table": [
      {
        "time": 1,
        "at_risk_before": 6,
        "events": 0,
        "censors": 1,
        "survival": "1"
      },
      {
        "time": 2,
        "at_risk_before": 5,
        "events": 0,
        "censors": 2,
        "survival": "1"
      },
      {
        "time": 4,
        "at_risk_before": 3,
        "events": 0,
        "censors": 1,
        "survival": "1"
      },
      {
        "time": 5,
        "at_risk_before": 2,
        "events": 0,
        "censors": 1,
        "survival": "1"
      },
      {
        "time": 6,
        "at_risk_before": 1,
        "events": 0,
        "censors": 1,
        "survival": "1"
      }
    ],
    "median_within_observed_range": null
  },
  "lifelines_executed": false,
  "independent_censoring_proven": false,
  "clinical_data": false
}