Table 2 Incidence of psychiatric diagnoses per 1000 person years (pyrs) and incidence rate ratios (IRRs) in juvenile idiopathic arthritis (JIA) patients compared to controls
Psychiatric Diagnoses (ICD-10) | JIA (n = 4180) n (%) | JIA Incidence/1000 pyrs (95% Cl) | Controls (n = 12,512) n (%) | Controls Incidence/1000 pyrs (95% Cl) | IRR (95% Cl) |
|---|---|---|---|---|---|
Mental and behavioural disorders due to psychoactive substance use (F10–19) | |||||
Females | 46 (1.10) | 2.00 (1.47, 2.67) | 123 (0.98) | 1.78 (1.48, 2.13) | 1.12 (0.80, 1.57) |
Males | 24 (0.57) | 1.72 (1.10, 2.56) | 89 (0.71) | 2.13 (1.71, 2.62) | 0.81 (0.52, 1.26) |
Psychotic disorders (F20–29) | |||||
Females | 24 (0.57) | 1.04 (0.67, 1.55) | 33 (0.26) | 0.48 (0.33, 0.67) | 2.19 (1.29, 3.70) |
Males | 7 (0.17) | 0.50 (0.20, 1.03) | 35 (0.28) | 0.83 (0.58, 1.16) | 0.60 (0.27, 1.35) |
Mood (affective) disorders (F30–39) | |||||
Females | 279 (6.67) | 12.86 (11.39, 14.46) | 493 (3.94) | 7.33 (6.70, 8.00) | 1.75 (1.52, 2.03) |
Males | 63 (1.51) | 4.59 (3.52, 5.87) | 149 (1.19) | 3.59 (3.04, 4.22) | 1.28 (0.85, 1.71) |
Neurotica, stress-related and somatoform disorders (F40–48) | |||||
Females | 335 (8.01) | 15.50 (13.89, 17.25) | 510 (4.07) | 7.57 (6.93, 8.25) | 2.05 (1.79, 3.45) |
Males | 100 (2.39) | 7.33 (5.97, 8.92) | 171 (1.37) | 4.13 (3.54, 4.80) | 1.77 (1.39, 2.27) |
Behavioural syndromes associated with physiological disturbances and physical factors (F50–59) | |||||
Females | 100 (2.39) | 4.42 (3.60, 5.38) | 175 (1.39) | 2.55 (2.19, 2.96) | 1.73 (1.35, 2.22) |
Males | 34 (0.81) | 2.44 (1.69, 3.41) | 29 (0.24) | 0.69 (0.46, 0.99) | 3.55 (2.16, 5.83) |
Disorders of adult personality and behaviour (F60–69) | |||||
Females | 26 (0.62) | 1.13 (0.74, 1.65) | 61 (0.49) | 0.88 (0.67, 1.13) | 1.28 (0.81, 2.02) |
Males | 8 (0.19) | 0.57 (0.25, 1.12) | 19 (0.15) | 0.45 (0.27, 0.70) | 1.26 (0.55, 2.88) |
Disorders of psychological development (F80–89) | |||||
Females | 98 (2.34) | 4.45 (3.62, 5.41) | 169 (1.35) | 2.47 (2.11, 2.87) | 1.80 (1.40, 2.31) |
Males | 94 (2.25) | 7.06 (5.71, 8.63) | 245 (1.96) | 6.04 (5.30, 6.84) | 1.17 (0.92, 1.49) |
Childhood behavioural and emotional disorders (F90–98) | |||||
Females | 202 (4.83) | 9.16 (7.94, 10.51) | 325 (2.61) | 4.79 (4.28, 5.34) | 1.91 (1.60, 2.28) |
Males | 145 (3.47) | 10.88 (9.18, 12.81) | 299 (2.39) | 7.39 (6.58, 8.28) | 1.47 (1.20, 1.80) |