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Table 1 Descriptive characteristics of the dataset (N = 2,011,813)

From: Predictors of outpatients’ no-show: big data analytics using apache spark

Features No-show (N %) Show (N %) Total (N)
Gender
 Male 213,729 (10.62%) 564,024 (28.04%) 777,753
 Female 323,693 (16.09%) 910,367 (45.25%) 1,234,060
Age Group
 0–5 66,118 (3.29%) 150,748 (7.49%) 216,866
 6–10 39,234‬ (1.95%) 95,566 (4.75%) 134,800
 11-15 32,949 (1.64%) 87,269 (4.34%) 120,218
 16–20 32,440 (1.61%) 87,115 (4.33%) 119,555
 21–25 40,968 (2.04%) 104,714 (5.20%) 145,682‬
 26-30 44,580 (2.22%) 118,409 (5.89%) 162,989
 31-35 45,776 (2.28%) 123,426‬ (6.14%) 169,202
 36–40 40,400 (2.01%) 114,836 (5.71%) 238,262
 41-45 32,026 (1.59%) 95,960 (4.77%) 127,986
 46–50 31,599 (1.57%) 97,445 (4.84%) 129,044‬
 51–55 30,485‬ (1.52%) 94,975 (4.72%) 125,460‬
 56–60 27,602 (1.37%) 88,763 (4.41%) 116,365
 61–65 23,159 (1.15%) 74,015 (3.68%) 97,174
 66-70 16,748 (0.83%) 51,621 (2.57%) 68,369‬
 71–75 13,857 (0.69%) 39,771 (1.98%) 53,628
 76–80 10,223 (0.51%) 27,134 (1.35%) 37,357
 81–85 5,464‬ (0.27%) 13,272 (0.66%) 18,736
  > 85 3794 (0.19%) 9352 (0.46%) 13,146
Nationality
 Saudi 530,112 (26.35%) 1451,144‬ (72.13%) 1,981,256‬
 Non-Saudi 6650 (0.33%) 21,807 (1.08%) 28,457
 Unknown 660 (0.03%) 1440‬ (0.07%) 2,100‬
Appointment type
 New Patient (NP) 243,158 (12.09%) 890,110‬ (44.24%) 1,133,268‬
 First visit (FV) 271,466 (13.50%) 517,688 (25.73%) 789,154‬
 Follow up (FU) 22,798 (1.13%) 66,593 (3.31%) 789,154
Reservation type
 Scheduled 516,300 (25.66%) 1,278,602 (63.55%) 1,794,902
 Walk-in 21,122 (1.05%) 195,789 (9.73%) 216,911
Patient type
 Patient Service 530,923 (26.40%) 1,460,373 (72.59%) 1,991,296
 Business Center 2,625 (0.13%) 6,634 (0.33%) 9,259‬
 VIP 3,874 (0.19%) 7,384 (0.37%) 11,258
Distance (km)
 Distance <= 100 517,591 (25.73%) 1,421,338 (70.65%) 1,938,929
 Distance > = 101 and distance <= 399 10,251‬ (0.51%) 28,962 (1.44%) 39,213
 Distance > = 400 and distance <= 799 7,462 (0.37%) 19,229 (0.96%) 26,691
 Distance > = 800 2,118 (0.11%) 4,862 (0.24%) 6,980‬
Outpatient Clinics
 Health Care Specialty Clinic 236,668 (11.76%) 656,152‬ (32.61%) 892,820
 National Guard Comprehensive  Specialized Clinic 102,428 (5.09%) 264,979‬ (13.17%) 367,407
 King Abdulaziz City Housing 106,727 (5.31%) 304,584 (15.14%) 411,311
 King Saud city Housing 81,487 (4.05%) 215,946 (10.73%) 297,433
 Prince Bader Housing City Clinic 10,112 (0.50%) 32,730 (1.63%) 42,842