Table 3.
Logistic regression analysis examining administrative, sociodemographic and clinical associations with match status (match vs missed match)
| Variable | Total population (n=265 300) |
Matched (n=248 698, 93.74%) |
Missed match (n=16 602, 6.26%) |
OR (95% CI) | aOR† (95% CI) |
| Administrative variables | |||||
| NHS number present: n (%) | 259 545 (97.83) | 248 698 (100.00) | 10 847 (65.34) | ||
| Date of birth present: n (%) | 265 010 (99.89) | 248 698 (100.00) | 16 312 (98.25) | ||
| Sex present: n (%) | 265 246 (99.98) | 248 663 (99.99) | 16 583 (99.89) | 8.14 (4.66 to 14.23)** | |
| Postcode present: n (%) | 260 466 (98.18) | 245 278 (98.62) | 15 188 (91.48) | 6.68 (6.26 to 7.12)** | |
| Sociodemographic variables | |||||
| Age: mean (SD) | 43.40 (22.69) | 43.50 (22.79) | 41.92 (21.09) | 1.003 (1.002 to 1.004)** | 0.999 (0.998 to 1.000) |
| Male Sex: n (%) | 132 730 (50.04) | 123 818 (49.79) | 8912 (53.74) | 0.85 (0.83 to 0.88)** | 0.93 (0.89 to 0.96)** |
| Patient deceased: n (%) | 30 173 (11.37) | 29 057 (11.68) | 1116 (6.72) | 1.84 (1.73 to 1.95)** | 1.41 (1.30 to 1.53)** |
| Ethnicity: n (%) | |||||
| British, Irish or any other white ethnic groups | 138 495 (58.54) | 131 150 (58.93) | 7345 (52.35) | (reference) | (reference) |
| Mixed | 6853 (2.90) | 6477 (2.91) | 376 (2.68) | 0.96 (0.87 to 1.07) | 0.82 (0.73 to 0.91)** |
| Indian, Pakistani, Bangladeshi or ‘other Asian’ | 10 889 (4.60) | 10 155 (4.56) | 734 (5.23) | 0.77 (0.72 to 0.84)** | 0.78 (0.71 to 0.85)** |
| Caribbean, African or ‘other black’ | 40 725 (17.21) | 38 013 (17.08) | 2712 (19.33) | 0.78 (0.75 to 0.82)** | 0.70 (0.66 to 0.74)** |
| Other | 16 650 (7.04) | 15 393 (6.92) | 1257 (8.96) | 0.69 (0.64 to 0.73)** | 0.77 (0.72 to 0.83)** |
| Not stated | 22 961 (9.71) | 21 354 (9.60) | 1607 (11.45) | 0.74 (0.70 to 0.79)** | 0.89 (0.83 to 0.95)* |
| Resident in SLaM catchment area: n (%) | 187 773 (73.42) | 177 766 (73.53) | 10 007 (71.47) | 1.11 (1.07 to 1.15)** | 0.97 (0.93 to 1.02) |
| Quartiles of neighbourhood deprivation: n (%) | |||||
| First (most deprived) | 63 476 (25.03) | 60 220 (25.09) | 3256 (24.00) | (reference) | (reference) |
| Second | 63 452 (25.02) | 59 786 (24.91) | 3666 (27.02) | 0.88 (0.84 to 0.93)** | 0.90 (0.86 to 0.95)** |
| Third | 63 449 (25.02) | 60 052 (25.02) | 3397 (25.04) | 0.96 (0.91 to 1.00) | 1.01 (0.95 to 1.07) |
| Fourth (least deprived) | 63 221 (24.93) | 59 973 (24.99) | 3248 (23.94) | 1.00 (0.95 to 1.05) | 1.06 (1.00 to 1.12) |
| Clinical variables | |||||
| Referral status in 2 years prior to linkage: n (%) | |||||
| Accepted | 12 041 (4.56) | 11 423 (4.61) | 618 (3.78) | (reference) | (reference) |
| Discharged | 45 228 (17.11) | 42 394 (17.10) | 2834 (17.33) | 0.81 (0.74 to 0.89)** | 0.87 (0.78 to 0.97)* |
| Rejected | 9628 (3.64) | 8921 (3.60) | 707 (4.32) | 0.68 (0.61 to 0.76)** | 0.88 (0.76 to 1.01) |
| No referral in 2 years prior to linkage | 197 414 (74.69) | 185 221 (74.70) | 12 193 (74.57) | 0.82 (0.76 to 0.89)* | 0.87 (0.79 to 0.95)* |
| Primary diagnosis ever: n (%) | |||||
| F00-F09: organic, including symptomatic, mental disorders | 25 249 (9.52) | 24 248 (9.75) | 1001 (6.03) | 1.68 (1.58 to 1.80)** | 1.37 (1.26 to 1.49)** |
| F10-F19: mental and behavioural disorders due to psychoactive substance use | 27 755 (10.46) | 26 158 (10.52) | 1597 (9.62) | 1.10 (1.05 to 1.16)** | 1.12 (1.05 to 1.21)* |
| F20-F29: schizophrenia, schizotypal and delusional disorders | 18 516 (6.98) | 17 323 (6.97) | 1193 (7.19) | 0.97 (0.91 to 1.03) | 1.02 (0.93 to 1.11) |
| F30-F39: mood (affective) disorders | 42 578 (16.05) | 40 515 (16.29) | 2063 (12.43) | 1.37 (1.31 to 1.44)** | 1.28 (1.21 to 1.36)** |
| F40-F49: neurotic, stress-related and somatoform disorders | 33 248 (12.53) | 31 599 (12.71) | 1649 (9.93) | 1.32 (1.25 to 1.39)** | 1.27 (1.19 to 1.35)** |
| F50-F59: behavioural syndromes associated with physiological disturbances and physical factors | 8743 (3.30) | 8388 (3.37) | 355 (2.14) | 1.60 (1.43 to 1.78)** | 1.49 (1.31 to 1.69)** |
| F60-F69: disorders of adult personality and behaviour | 6945 (2.62) | 6585 (2.65) | 360 (2.17) | 1.23 (1.10 to 1.37)** | 0.95 (0.84 to 1.07) |
| F70-F79: mental retardation | 3018 (1.14) | 2898 (1.17) | 120 (0.72) | 1.62 (1.35 to 1.95)** | 1.55 (1.26 to 1.89)** |
| F80-F89: disorders of psychological development | 7242 (2.73) | 6991 (2.81) | 251 (1.51) | 1.88 (1.66 to 2.14)** | 1.86 (1.61 to 2.15)** |
| F90-F98: behavioural and emotional disorders with onset usually occurring in childhood and adolescence | 17 011 (6.41) | 16 363 (6.58) | 648 (3.90) | 1.74 (1.60 to 1.88)** | 1.58 (1.45 to 1.74)** |
| Other diagnosis | 119 638 (45.10) | 112 556 (45.26) | 7082 (42.66) | 1.11 (1.08 to 1.15)** | 1.23 (1.18 to 1.28)** |
| Quartiles of face-to-face contacts: n (%) | |||||
| First (least face-to-face contact) | 76 602 (28.87) | 70 822 (28.48) | 5780 (34.82) | (reference) | (reference) |
| Second | 64 914 (24.47) | 59 811 (24.02) | 5103 (30.74) | 0.96 (0.92 to 0.99)* | 0.94 (0.89 to 0.99)* |
| Third | 59 337 (22.37) | 56 116 (22.56) | 3221 (19.40) | 1.42 (1.36 to 1.49)** | 1.15 (1.08 to 1.22)** |
| Fourth (most face-to-face contact) | 64 447 (24.29) | 61 949 (24.91) | 2498 (15.05) | 2.02 (1.93 to 2.12)** | 1.42 (1.33 to 1.52)** |
| Inpatient bed days: n (%) | |||||
| None (0) | 238 573 (89.93) | 223 527 (89.88) | 15 046 (90.63) | (reference) | (reference) |
| Low (1–2 days) | 1446 (0.55) | 1342 (0.54) | 104 (0.63) | 0.87 (0.71 to 1.06) | 0.86 (0.67 to 1.09) |
| Moderate (3–31 days) | 9825 (3.70) | 9133 (3.67) | 692 (4.17) | 0.89 (0.82 to 0.96)* | 0.90 (0.81 to 1.00)* |
| High (32+ days) | 15 456 (5.83) | 14 696 (5.91) | 760 (4.58) | 1.30 (1.21 to 1.40)** | 1.14 (1.03 to 1.26)* |
Missing data: age (n=275); sex (n=55); ethnicity (n=28 727); resident in local catchment area (n=9537); quartiles of neighbourhood deprivation (n=11 702); referral status (n=989).
*P<0.05. **P<0.001.
†Adjusted for all other variables listed in the table.
aOR, adjusted OR; NHS, National Health Service; OR, Odds Ratio; SLaM, South London and Maudsley NHS Foundation Trust.