Table 1

Associations between relationship duration and mental disorder

Relationship duration, years
0 <2 2–4 5+ P
Depression, %
     24–25 years 15.6 18.0 13.0 11.5
     29–30 years 15.6 23.0 9.8 9.2
     Overall 15.6 20.8 11.5 10.0 < 0.0005
Anxiety disorder, %
     24–25 years 12.9 11.5 13.0 15.0
     29–30 years 17.8 15.2 13.0 12.9
     Overall 14.8 13.6 13.0 13.7 > 0.79
Suicidal ideation/attempt, %
     24–25 years 7.4 7.9 7.4 2.5
     29–30 years 5.1 9.6 1.6 3.2
     Overall 6.5 8.8 4.8 2.9 < 0.0005
Alcohol abuse/dependence, %
     24–25 years 18.5 18.7 6.5 6.5
     29–30 years 12.0 13.5 6.0 6.0
     Overall 16.0 15.8 6.3 6.2 < 0.0001
Illicit drug abuse/dependence, %
     24–25 years 13.1 15.8 7.9 4.5
     29–30 years 7.3 6.7 4.4 2.9
     Overall 10.9 10.7 6.3 3.5 < 0.0001
Number of mental health problems, mean
     24–25 years 0.67 0.72 0.48 0.40
     29–30 years 0.58 0.68 0.35 0.34
     Overall 0.64 0.70 0.42 0.36 < 0.0001