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. Author manuscript; available in PMC: 2024 Dec 6.
Published in final edited form as: Int J Eat Disord. 2008 Jul;41(5):411–418. doi: 10.1002/eat.20514

TABLE 4.

Mean of variables that pertain to the validity of the syndrome and subtypes

Ever Used
Marijuana
(%)
Ever Used
Crack/
Cocaine (%)
0 Day 5+
Drinks (%)
Overall Health
(1 = Poor,
5 = Excellent)
Energy (kcal) kcal from
Protein (%)
kcal from
Carbohydrate (%)
kcal from
Fat (%)
kcal from
Sucrose (%)
Cholesterol
(mg)
Sodium
(mg)
Depressed late night eaters (n = 330) 67.4 26 32.5 3.6 ± 1.0 2765.6 ± 1555.6 13.1 ± 4.5 50.8 ± 10.5 32.7 ± 9.0 10.8 ± 7.5 327.1 ± 310.6 4265.0 ± 2994.3
Depressed evening eaters (n = 296) 68.5 27.8 27.7 3.5 ± 1.1 2670.1 ± 1407.9 14.2 ± 5.2 46.8 ± 11.9 33.1 ± 9.8 8.7 ± 7.8 303.0 ± 259.1 4059.1 ± 2369.3
Nondepressed late night eaters (n = 864) 52.3 20.3 35.7 3.8 ± 1.0 2829.2 ± 1470.5 14.1 ± 4.4 49.3 ± 10.6 32.6 ± 8.8 9.9 ± 6.6 346.7 ± 343.7 4322.6 ± 2686.1
Nondepressed evening eaters (n = 578) 51.7 16.7 46.6 3.9 ± 0.9 2448.1 ± 1034.9 14.6 ± 4.7 47.6 ± 10.9 34.3 ± 9.2 9.4 ± 6.4 274.7 ± 238.9 3939.0 ± 2172.0
Total NE (n = 2,068) 56.9 21.3 37.1 3.8 ± 1.0 2686.9 ± 1391.2 14.1 ± 4.6 48.7 ± 10.9 33.2 ± 9.1 9.7 ± 6.9 316.7 ± 304.1 4165.9 ± 2586.9
Total NNE (n = 6,182) 50.8 15.2 49.3 3.7 ± 1.0 2378.5 ± 1112.2 14.7 ± 4.8 49.4 ± 10.6 33.4 ± 8.9 10.1 ± 7.1 307.5 ± 275.0 3814.6 ± 2086.7
NNTa:NE vs. NNE −16.5* −16.5** +8.2** −33.4 −6.4** +14.1* +27.1 +66.5 +34.2 −50.3 −10.5**

Notes: Percentage or mean and standard deviation are presented in each cell. Number needed to take (NNT) comparing all night eaters (total NE) and all nonnight eaters (total NNE) is presented with indicators of the level of significance for this comparison.

a

NNT = ±1 indicates perfect discrimination between NEs and NNEs. Positive NNT indicates that NNE group has response greater than NE group; negative that NE group has response greater than NNE group. As a “rule of thumb” in epidemiological studies, NNT ≤ 10 indicates strong association, 10 < NNT ≤ 20 indicates moderate association, and NNT > 20 weak association.

*

p < .01

**

p < .001 (no differences were significant at the 0.01 ≤ p < 0.05 level).