Table 2.
Summary of intervention requirements and overall intensity ratings
| First author | Duration* | Contact† | Type of contact‡ | Reach§ | Intensity score (out of 20) | Overall intensity rating∥ | Effective¶ (Yes/No ) |
|---|---|---|---|---|---|---|---|
| Caine-Bish( 30 ) | 2 | 4 | 3 | 1 | 10 | lower | Y |
| Koivisto( 44 ) | 3 | 5 | 1 | 1 | 10 | lower | Y |
| Powers ( 40 ) | 2 | 4 | 3 | 1 | 10 | lower | N |
| Condon( 31 ) | 4 | 5 | 1 | 1 | 11 | medium | Y |
| Hovell( 37 ) | 2 | 4 | 4 | 1 | 11 | medium | Y |
| Evans( 43 ) | 3 | 2 | 4 | 3 | 12 | medium | Y |
| Freedman( 34 ) | 1 | 4 | 4 | 3 | 12 | medium | Y |
| Dwyer ( 32 )** | 5 | 5 | 1 | 1 | 12 | medium | N |
| Epstein ( 33 ) | 5 | 2 | 4 | 1 | 12 | medium | N |
| Albala( 42 ) | 3 | 4 | 5 | 1 | 13 | higher | Y |
| Alexy( 45 ) | 4 | 4 | 4 | 1 | 13 | higher | Y |
| Van Horn( 41 )†† | 5 | 3 | 4 | 1 | 13 | higher | Y |
| Muth ( 38 ) | 3 | 4 | 4 | 3 | 14 | higher | N |
| French( 35 ) | 5 | 3 | 4 | 3 | 15 | higher | Y |
Italics: highlights ineffective studies.
*1 = <6 weeks, 2 = 6 to 11 weeks, 3 = 12 weeks to 5 months, 4 = 6 to 12 months, 5 = >12 months.
†1 = annually, 2 = bimonthly to quarterly, 3 = monthly, 4 = weekly, 5 = daily.
‡1 = environmental (intervening at the physical, policy or legislative level), 2 = environmental with a small group/education component, 3 = group, 4 = group with an individual component (goal setting, homework task), 5 = individual (one-on-one personalised contact).
§1 = one setting, 3 = two settings, 5 = three or more settings. No values for 2 and 4 because three was the maximum number of settings used.
IILower = score ≤10, medium = score 11–12, higher = score ≥13.
¶Intervention effectiveness is defined as a statistically significant increase (P < 0·05) in a dairy outcome AND outcome measured using an objective method or robust dietary assessment method.