Table 5 Logistic regression model predicting SQoL rating improvement T1 Low to T2 High (n = 407)

Sex

Female

Ref

Male

1.37 (0.90–2.09)

T1 Contemporary Age

1.00 (0.98–1.03)

T1 Age of illness onset

1.03 (1.00-1.06) ^a

T1 BPRS-C

No/minimal symptoms

Ref

Presence of clinically relevant symptoms

0.93 (0.57–1.52)

T1 ITAQ-C

Low (scores 0–7)

Ref

Medium (scores 8–13)

1.47 (0.89–2.43)

High (scores 14–22)

1.08 (0.64–1.83)

Constant

0.25

Significance of model

Χ²(df, N) p-value

13.203 (6, N = 408) p = 0.040

Model percentage variance predicted

Between Cox & Snell R² and Nagelkerke R²

3.2-4.3%

Percentage of cases correctly classified

58.5%