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Table 1 The study population

From: Hand-rolled cigarette smoking patterns compared with factory-made cigarette smoking in New Zealand men

(Males-only study) Smokers of Roll-your-own (RYO) cigarettes n = 26 Smokers of Factory-made (FM) cigarettes n= 22 All
n = 48
p values for RYO vs FM
Average age, years (sd) 39 (13) 47 (13) 43 (13) 0.026
Maori, n 5 2 7  
0.43#     
European, n 21 20 41  
Height cms (sd) 175.2 (9.3) 177.5 (7.9) 176.3 (8.7) 0.372
Weight kg (sd) 85.5 (28.2) 93.6 (28.7) 89.24 (28.5) 0.333
NZ Deprivation index of census unit area* average decile (sd) 5.6 (2.7) 4.7 (3.4) 5.2 (3.0) 0.312
Time to first cigarette of the day, minutes (sd) 6.06 (5.71) 8.64 (5.27) 7.24 (5.61) 0.113
Cigarettes per day (sd) 19.0 (6.8) RYO and 0.6 (1.18) FM 17.4 (7.5) FM and 0.1 (0.4) RYO 18.63 (7.00) 0.454
Heavy smoking index (sd) 3.77 (1.27) 3.55 (0.91) 3.67 (1.12) 0.495
Cravings before 1st cigarette of the day. VAS score (sd) (where 100 = extreme craving) 62.9 (24.2) 57.8 (23.9) 60.6 (23.9) 0.475
  1. *Higher score indicates higher deprivation, n = 20 for FM group.
  2. p values are based on Chi-squared tests for categorical measures and independent t-tests for continuous measures.
  3. # No significant difference in RYO to FM proportions in either Maori or European.