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Table 3 Multilevel linear regression analyses: group, time and interaction effects on diagnoses of chronic and acute alcohol abuse

From: The introduction of the practice nurse mental health in general practices in the Netherlands: effects on number of diagnoses of chronic and acute alcohol abuse

  Diagnoses of chronic alcohol abuse Diagnoses of acute alcohol abuse and intoxication
β (SE) P β (SE) P
Group (control)
 PCP 0.85 (0.75) .26 −0.12 (0.23) .60
 PN-MH −0.76 (0.70) .28 0.01 (0.22) .95
 PCP/PN-MH −0.13 (0.83) .87 − 0.09 (0.26) .72
±Time period (6)
 Period 1 (0–6 months) 2.40 (0.71) .00* −0.04 (0.21) .84
 Period 2 (7–12 months) 1.33 (0.63) .04 0.37 (0.22) .09
 Period 3 (13–18 months) 0.65 (0.64) .32 −0.17 (0.20) .39
 Period 4 (19–24 months) 1.60 (0.64) .01* 0.41 (0.19) .04
 Period 5 (25–30 months) −0.12 (1.22) .76 0.13 (0.18) .46
Interaction effects
 PCP/PN-MH * Period 1 0.60 (1.21) .62 0.43 (0.37) .24
 PCP/PN-MH * Period 2 2.45 (1.13) .03 0.01 (0.40) .98
 PCP/PN-MH * Period 3 0.96 (1.19) .42 0.75 (0.37) .04
 PCP/PN-MH * Period 4 0.19 (1.20) .87 −0.19 (0.37) .60
 PCP/PN-MH * Period 5 1.66 (0.79) .03 −0.29 (0.34) .40
 PN-MH * Period 1 −0.62 (1.03) .55 0.06 (0.31) .84
 PN-MH * Period 2 −0.23 (0.95) .81 −0.10 (0.33) .77
 PN-MH * Period 3 0.93 (0.99) .35 0.23 (0.31) .46
 PN-MH * Period 4 −0.06 (0.98) .95 −0.19 (0.30) .52
 PN-MH * Period 5 0.70 (0.66) .29 −0.25 (0.28) .38
 PCP * Period 1 2.25 (1.22) .07 0.01 (0.36) .98
 PCP * Period 2 −0.16 (1.09) .88 −0.32 (0.38) .41
 PCP * Period 3 0.99 (1.10) .37 0.31 (0.34) .36
 PCP * Period 4 −1.87 (1.12) .09 −0.52 (0.34) .13
 PCP * Period 5 −0.42 (0.69) .54 −0.04 (0.30) .88
  1. *P < .016 (adjusted for multiple comparisons)
  2. ± = Reference period
  3. Reference group for the interaction-terms is control group
  4. ICC = 16.94