Table 3

Adjusted Odds of MDD at 9 and/or 18 Months, Stratified by Moderate (−NA) and High (+NA) Negative Affect

All Cases (N=338)
OR (95% CI)
−NA (n=121) a
OR (95% CI)
+NA (n=61) b
OR (95% CI)
Age0.96 (0.92–1.01)0.97 (0.92–1.02)0.95 (0.88–1.03)
Female1.29 (0.50–3.30)1.32 (0.43–4.06)2.88 (0.49–17.07)
White race0.96 (0.37–2.46)0.62 (0.20–1.92)1.37 (0.27–7.12)
Income1.00 (0.98–1.01)1.00 (0.99–1.02)1.01 (0.99–1.03)
Hemoglobin A1c1.12 (0.87–1.43)1.36c(1.01–1.85)1.63c (1.06–2.53)
BMI1.01 (0.95–1.08)1.09c(1.01–1.18)1.08 (0.97–1.21)
Prior MDD4.19d (1.79–9.79)3.10c (1.15–8.41)2.69 (0.69–10.52)
No. of negative life events1.10 (0.98–1.24)1.14c(1.01–1.31)1.21c (1.01–1.45)
Negative affect at baseline1.09e (1.05–1.13)
  • BMI=body mass index; CI=confidence interval; hemoglobin A1c=glycated hemoglobin; MDD=major depressive disorder; OR = odds ratio.

  • a −NA, group of patients with CES-D cutoff scores of 310 and no MDD at baseline.

  • b +NA, group of patients with CES-D cutoff scores of 316 and no MDD at baseline.

  • c P <.05.

  • d P <.01.

  • e P < .001.