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. Author manuscript; available in PMC: 2018 Jul 5.
Published in final edited form as: Drug Alcohol Depend. 2016 Feb 17;161:316–322. doi: 10.1016/j.drugalcdep.2016.02.014

Table 1.

Missing data patterns for the PROMIS Alcohol Use item bank.

Study visit N %
T1 T2a T3b
1 1 1 145 64
1 1 0 19 8
1 0 1 13 6
1 0 0 48 21
a

Missing data at T2: N = 61 (27%).

b

Missing data at T3: N = 67 (30%).