Table 3 Data quantity thresholds applied and the amount of data removed or available for analysis
From: A systematic review of passive data for remote monitoring in psychosis and schizophrenia
Threshold type | Threshold | Amount of data removed/available |
|---|---|---|
Defining valid days and the number of valid days | ≥6 h per day for ≥3 days | Excluded n = 19 (9.2%)119; n = 3 (2.4%)29,30; n = 24 (32.4%)120; n = 19 (9.1%)121; NR81 |
≥8 h per day for ≥10 days | ||
≥10 h per day for ≥2 days | ||
≥10 h per day for ≥3 days | Excluded n = 2 (3.6%)127,128; n = 17 (31.5%)129; n = 10 (8.8%)130 | |
≥10 h per day for ≥4 days | Excluded n = 2 (6.7%)131; n = 7 (14.6%)132; n = 11 (16.7%)133 ; NR56,134,135,136,137,138 | |
≥10 h per day for ≥5 days | ||
≥16 h per day for ≥4 days | 76% valid data at baseline, 52% at 12 months57 | |
≥19 h per day for ≥7 days | NR50 | |
≥1368 min per day for 7 days | ||
<10% missing data per day for ≥7 days | Excluded n = 4,345 (4.2%)117 | |
data in each hour of 24 h day for ≥6 days | Excluded n = 6,020 (5.8%)117 | |
<1 h non-wear per night for 4 nights | Excluded n = 2 (6.7%)131 | |
Defining valid days only | ≥19 h per day | |
≥20 h per day | NR73 | |
≥21 h per day | ||
≥ 23 h per day | NR142 | |
24 h | Excluded n = 3 (4.8%)143 | |
Defining the number of days/nights only | ≥3 days | Excluded n = 11 (4.4%)46; n = 2 (8.3%)144; n = 1 (2.5%) at baseline & n = 19 (47.5%) at 6 months145; NR106 |
≥3 nights | ||
≥5 days | NR74 | |
≥7 days | Excluded n = 2 (11.8%)51 | |
≥10 days | Excluded n = 2 (3.2%)52 | |
Using data values | ≥300 steps recorded | |
>0 steps recorded | NR54 | |
Other | total wear time ≥72 h | n = 6,978 (6.7%)118 |
average on-body time ≥1368 min per day | ||
continuous recordings of ≥8 | NR149 | |
>10 missing endpoints (derived from either passive data or imaging) | n = 16 (21.3%)77 |