Table 1 Prediction of app adherence and quit attempts: univariable and multivariable logistic regression analyses (N = 217–235)

Participant and smoking characteristics

 Municipality

Roermond (ref.)

1

1

1

Goeree-Overflakkee

0.94 (0.52–1.71)

1.20 (0.64–2.22)

1.21 (0.58–2.54)

Hulst

0.58 (0.21–1.61)

0.60 (0.19–1.90)

0.56 (0.16–2.01)

Stadskanaal

0.54 (0.26–1.12)

0.34 (0.14–0.85)*

0.55 (0.19–1.55)

Weststellingwerf

1.27 (0.63–2.54)

1.06 (0.51–2.20)

0.72 (0.30–1.70)

 Smokes < 30 min after waking

Yes

1.38 (0.72–2.64)

1.52 (0.74–3.13)

 Previous quit attempt(s)

Yes

1.75 (0.99–3.10)⁺

1.45 (0.77–2.74)

2.09 (1.10–3.96)*

1.62 (0.81–3.24)

 Professional coach

Yes

4.33 (2.20–8.52)***

4.06 (1.94–8.50)***

4.75 (2.50–9.03)***

4.55 (2.29–9.06)***

Reason(s) to quit*

 Example for (own) children

Yes

1.41 (0.80–2.50)

1.57 (0.86–2.86)

 Financial

Yes

1.17 (0.65–2.11)

1.31 (0.70–2.42)

 Longevity

Yes

1.67 (0.94–2.97)⁺

0.90 (0.42–1.94)

1.57 (0.86–2.86)

 Physical condition and energy

Yes

1.38 (0.81–2.36)

1.08 (0.61–1.91)

 Other

Yes

1.24 (0.61–2.49)

1.51 (0.73–3.12)

# Cigarettes per day

1.00 (0.98–1.02)

1.00 (0.97–1.02)

# Reasons to quit smoking

1.29 (1.03–1.61)*

1.23 (0.93–1.63)

1.22 (0.98–1.53)⁺

Initial app usage characteristics

Enabled push notifications

Yes

2.13 (1.01–4.47)*

2.18 (0.92–5.18)⁺

1.66 (0.74–3.73)

Virtual coach

Female

0.81 (0.45–1.44)

0.79 (0.43–1.45)