{
    "items": [
        {
            "text": "correlated",
            "kind": "statistic",
            "columns": [
                "age",
                "bedtime_phone_minutes",
                "caffeine_post_5pm_mg",
                "deep_sleep_pct",
                "morning_alarm_snoozes",
                "next_day_fatigue_score",
                "physical_activity_min",
                "rem_sleep_pct",
                "screen_brightness_pct",
                "sleep_latency_min",
                "total_sleep_hours"
            ],
            "statistics": [
                "correlation"
            ],
            "group_column": null,
            "group_values": []
        }
    ]
}