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

Excluded n = 2 (10.5%)20; NR122

≥10 h per day for ≥2 days

NR123,124,125,126

≥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

Excluded n = 38 (14.7%)139; NR140

≥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

Excluded n = 13 (9.2%)36; NR141

<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

NR24,48,49

≥20 h per day

NR73

≥21 h per day

NR75,111

≥ 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

Excluded n = 10 (5.0%)28; NR80

≥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

NR31,53

>0 steps recorded

NR54

Other

total wear time ≥72 h

n = 6,978 (6.7%)118

average on-body time ≥1368 min per day

n = 4 (3.4%)146; NR147,148

continuous recordings of ≥8 

NR149

>10 missing endpoints (derived from either passive data or imaging)

n = 16 (21.3%)77